Addmath Project Tips #1
“Computer is allowed. It is not necessary to be handwritten”. I was overjoyed when i heard this. This time I don’t have to show my awful and hard-2-read handwriting for my teacher to see. Well, this is about my Addmath Project. This year’s Form 4 student have to deal with Statistics of their exam result (i suppose it is the same through out Malaysia).
For those who’s using computer as their “writer”, I’m sure you have troubles with typing those formula, such as the min, sisihan piawai or varians formula. Here’s a solution, if you’re a Micro$oft Words XP user. I’m not sure about the older version, but I suppose newer version should work, or works almost the same. Stop those nonsense introduction, go straight to the point!!
GeminiGeek’s Guide to AddMath Project Using Your PC #1
- Make sure you have your Micro$oft Office XP cd with you. You will have to install Microsoft Equation 3.0. If you did a full installation, you can skip this process. If you did a Recommended Installation, then you will have to look through this step.
- Insert your cd. (duh~) Do a Add and Remove Feature
- All the feature available for installation will appear. Click on Office Tools
- Make Equation Editor run on your computer.
- Click Update so the Setup can update the installation.
- Alright, Step 2. Open your Micro$oft Words. Go to Insert –> Objects…. Under the Create New tab, scroll to Microsoft Equation 3.0. Check the Display as Icon (just check if you want more power)
- Then, a window will appear. You can type in the formula there. Make sure you have the Equation Editor Toolbar enable in your View, or else, you can do nothing. There’s quite a lot of fun stuff to do there. It’s kinda cool. Ok, when you’re done, Update (F3) and exit to Micro$oft Words.
- Now, you will see the Icon, but no EQUATION!!! Yikes, how? OK, now all you have to do is right click that icon, go to Equation Object –> Convert…. Now, uncheck the Display as Icon.
- And now, walla, you have the equation on your Micro$oft Words document. Cool, huh??
Here’s a note about the Display as Icon thing. Whenever you check that feature, editing an equation opens a new window. This is fairly important as this new feature allows you type Normal Text or customise the font or the look of the equation. Oh well, it’s up to you on how you want it to be. For me, i prefer to customize an equation in a new window.
Need more help? Feel free to leave a comment. I will reply ASAP. Since now is holiday, I will be online every night, so, you can also PM me through MSN Messenger. I’ll be posting Tips #2 on using your Micro$oft Excel. Well, it’s about playing with formula’s. Wait for it, ok?
Updates for AddMath Project 2007
Due to massive response and ignorance of certain readers who are too lazy to even read the fucking comments, I decided to update the entry with all the replies I did in the comments. Please DON’T ASK ANYTHING THAT IS ALREADY MENTIONED HERE! I will delete the comments to prevent having comments overloaded. It suck up my hosting resource and it is not a good idea.
Form 5 Add Math Project
The question is about Ang, Bakar and Chandran, and the problems is related to calculating interests and compounding interest. Thanks to mAx for providing me the questions. Because interest rates and compounding interest is related to my studies, I am able to do most of the questions. I hope this guide is helpful for people looking for calculations help.
So here’s the solution:
1 a. Method one is progression and I suggest manual addition for the 2nd method. It shouldn’t be a problem that way. Just list all their monthly income and a total in a form of table. It is still a method, and I guess it’s not wrong to do so.
1 b. I’m sure you know how to count their income for 2nd year. Commenting is a very subjective questions, so just squeeze your brain and think for a while 
1 c. I’m not sure if this calculation involved compound interest or not, but let’s just assume it involved compound interest. To count compound interest, you can use this formula:
Principle x (1 + interest rates)^(n Period) with interest rates express in over 100.
Since the interest rates are per annum, therefore you have to divide it into appropriate number of monthly renewal.
(i)
Ang:
Interest rates per month: 0.025/12 = 1/480.
Since it is renewed every month, therefore the compounding interest rates per month is at 1/480 for 36 months.
Therefore: RM10000 x (1 + 1/480)^36 = Amount received after 3 years.
Bakar:
Interest rates every 3 months: 0.03/4 = 3/400.
Renewed every 3 months, so, compounding interest rates per 3 months is at 3/400 for 12 period of 3 months.
Therefore: RM10000 x (1 + 3/400)^12 = Amount received after 3 years.
Well, I guess after my calculation, you should be able to count Chandran’s receivable as well.
(ii) Again, this is a subjective question. So, please think about it yourself 
2 (a) My additional maths knowledge is kinda rusty, so I am not sure how to count this if you’re asking for a method or formula. But, if you are to count manually (which is to add it up to 18 times), I can show you how. Here’s how:
Year 1: RM300 x (1.08) = RM324
Year 2: (RM 324 + RM300) x (1.08) = RM673.92
Year 3: (RM673.92 + RM300) x (1.08) = RM1051.8336
Year 4: and so on…
2 (b) Refer here this comment for the answer.
It is NOT GUARANTEED that the calculation are correct. Use this tips as a Guide for your own. Don’t hesitate to comment if you have a better solutions.
For those looking for guides regarding the “Obesity Awareness Campaign” project, please refer to Comment #54 and onwards. DO NOT ask any questions that is already asked in the comments. Such comments will be deleted.
Any questions asked will not be answered instantly. I have other things to do as well. So, refrain yourself from posting the same question again and again, or posting comments like “Quick. I need answer fast”. Such comments will be deleted. All I ask is your patience. I will answer your questions if I can. I will try to help as much as possible.
REFRAIN yourself from posting comments requesting ANSWERS SENT TO YOUR EMAIL. Those comments will be DELETED. Only DISCUSSION on this AddMath Project is allowed.
Popularity: 25% [?]
August 23rd, 2004 at 12:25 pm
you may also use LaTeX repository like MiKTeX and a GUI like Win Edit Beta 4 with it. Its mainly designed for mathematical formulae and stuff and most of the scientists use it.
and you have got a cool blog here…
August 23rd, 2004 at 2:56 pm
Hey there, found your blog from PPS. Anyways, this Microsoft Equation 3.0, is it available for Office 2003? And where did you get it from?
August 24th, 2004 at 12:03 am
i would suppose so, just check your cd. i think it shud be in the Office Tools, when you go to the setup.
August 24th, 2004 at 12:40 pm
btw how bout using excel for the project. Why dun u giv a simple excel guide so that ppl who use excel as one of the kaedah for the project know how to use it
August 24th, 2004 at 12:55 pm
using MS Excel will be in my upcoming post
August 25th, 2004 at 3:13 pm
if i’m not mistaken…Office 2003 already have that installed or something….not add-on separately….
August 27th, 2004 at 5:05 pm
plz i need ur help. do messenger me or mail me 2nite
September 1st, 2004 at 5:10 pm
Hey GeminiGeek, nice info on the addmaths project. I have the answer sheet uploaded on my forum. http://forum.xetech.org/index.php?showtopic=310 (link dead)
anyway, nice to meet, my msn is colelinux[at]ca.tc let’s chat ya?
September 1st, 2004 at 10:29 pm
hey, that link is realli nice. veri helpful indeed. i’ll join that forum, support u all, hehehehe
August 5th, 2005 at 2:59 pm
halo….
can i know the solution for project addmath form 5 2005.??
thanks…:idea:
September 4th, 2005 at 2:32 pm
tq 4 ur answer dude!!!!!
October 25th, 2005 at 3:58 pm
how can i get ‘pengenalan’ in addmath project???…plzzz…i really2 need that…plzzz….
January 7th, 2006 at 5:34 pm
Please bagi jawapan utk addmath punyer projek
July 10th, 2006 at 10:06 pm
hi i just want to know where i can find the topics of add math
i am in form 4 now
so my add math is in english version
October 14th, 2006 at 10:40 am
hey. me too needs the answer to the sheep pen question
. i dont get it . actually i dont even know why we have to do this :blush:. i hope u can send me the answers to this questions . thank you so much . 
October 17th, 2006 at 1:50 pm
please help me to find the answer for additional mathematics project work title:sheep pen as soon as possible.send to my e-mail:hantenmaru87@yahoo.com……
I really hope there will be someone to help me…………………….
October 20th, 2006 at 1:38 pm
please do help me in my project with the title aluminium can..pleaseee
October 21st, 2006 at 12:04 pm
Please help me in add math form 4 regarding aluminium can. Thank’s.
October 21st, 2006 at 12:11 pm
Give me the question. I might be able to help a bit.
October 21st, 2006 at 8:22 pm
can please help me to find the answer for form4, 2006 additional mathematics project work about “aluminium can”? thanks…
October 24th, 2006 at 9:29 pm
Same question as Joyce on aluminium can project. Hope for your reply as soon as possible. Thank you in advance.
October 25th, 2006 at 11:42 am
i would like to ask for ur help in my add maths project work..the question is shown below..
question: The Muhibbah Company is a manufacturer of cylindrical aluminium tins.The manager plans to reduce the cost of production. The production cost is proportional to the area of aluminium sheet used. The volume that each tin can hold is 1000 cm
October 25th, 2006 at 12:10 pm
can help me to find the answer for form4, additional mathematics project about
October 25th, 2006 at 5:28 pm
same question like MAY or da question is ’bout da aluminium can….pliz rply 4 my question a.s.a.p……..as da dateline becomes nearer…thanx i advnce
October 25th, 2006 at 9:40 pm
Ah… So hard… It’s been almost a year I haven’t touch anything related calculus. I can’t help much, but I believe you must take note this:
V, volume for cylinder = pi r
October 27th, 2006 at 12:09 pm
i want the answer for the question addmaths project work form 4 aluminium can too
January 25th, 2007 at 6:04 pm
can somebody help me to do my addmaths project …. aluminium can?????????
errmmmmm…….. please give me a clue…
February 1st, 2007 at 1:44 pm
please help me how i want do in addmath projek work’the sheep pen’and
also giv me answer..plzzzz..
May 30th, 2007 at 11:05 am
assalamuaaikum…..i’ll here to find how to do project work add math f5 on tittle
water tank…would anyone help me???
June 3rd, 2007 at 12:08 am
please give me the answer for the project
addmath for year 2007 form4.the title is?
“obesity awareness campaign”
June 3rd, 2007 at 12:12 am
Hi! Even if you give me the title, I don’t even have the questions. And besides, I have forgotten how to do all these addmaths thing. So yeah, even if you ask me, I don’t know how to do.
Cheers
June 3rd, 2007 at 1:29 am
pleaz help me 4 eg. the question is describe the role that u can play to make the “Obesity Awareness Campaign” a success
June 3rd, 2007 at 1:44 am
Sometimes it’s better if such SUBJECTIVE question is for you to work it out yourself. Please, it’s not that hard to think of something you can do to make a campaign success.
June 5th, 2007 at 3:46 pm
hello! I’m new here..can you solve this for me?? it’s the 2007 add-maths project.
Question:
Ang, Bakar and Chandran are friends and they have just graduated from a local university. Ang works in a company with a starting pay of RM2000 per month. Bakar is a sales executive whose income depends solely on the commission he receives. He earns a commission of RM1000 for the 1st month increases by RM100 for each subsequent month. On the other hand, Chandran decides to go into business. He opens a cafe and makes a profit of RM100 in the first month. For the first year, his profit in each subsequent month is 50% more than that of the previous month.
In the second year, Ang receives a 10% increment in his monthly pay. On the other hand, the commission received by Bakar is reduced by RM50 for each subsequent month. In addition, the profit made by Chandran is reduced by 10% for each subsequent month.
1. a) How much does each of them receive at the end of the 1st year?
(2 or more method are required for this ques.)
[max: besides progressions method, what can i use?? show me..]
b) What is the percentage change in their total income for the 2nd year compared to the 1st year? Comment on the answers.
c) Ang, Bakar and Chandran, each decided to open a fixed deposit account of RM10000 for 3years without any withdrawal.
- Ang keeps the amount at an interest rate of 2.5% per annum for a duration of 1month renewable at the end of each month.
- Bakar keeps the amount at an interest rate of 3% per annum for a duration of 3months renewable at the end of every 3months.
- Chandran keeps the amount at an interest rate of 3.5% per annum for a duration of 6months renewable at the end of every 6months.
(i) Find the total amount each of them will receive after 3years.
(ii) Compare & comment on the difference in the interests received. If you were to invest RM10000 for the same period of time, which fixed deposit account would you prefer? Give your reasons.
Further Exploration
2. a) When Chandran’s 1st child, Johan is born, Chandran invested RM300 for him at 8% compound interest per annum. He continues to invest RM300 on each of Johan’s birthday, up to and including his 18th birthday. What will be the total value of the investment on Johan’s 18th birthday?
b) If Chandran starts his investment with RM500 instead of RM300 at the same interest rate, calculate on which birthday will the total investment be more than RM25000 for the 1st time.
* Compound interest is interest earned during a period calculated on the basis of the original sum together with interest earned from the previous periods.
June 5th, 2007 at 7:42 pm
Hi! I’m not sure if my answers are correct, but I will try my best to help.
1 a. Since you know how to use the progression method, so I suggest manual addition for the 2nd method. It shouldn’t be a problem that way. Just list all their monthly income and a total in a form of table. It is still a method, and I guess it’s not wrong to do so.
1 b. I’m sure you know how to count their income for 2nd year. Commenting is a very subjective questions, so just squeeze your brain and think for a while
1 c. I’m not sure if this calculation involved compound interest or not, but let’s just assume it involved compound interest. To count compound interest, you can use this formula:
Principle x (1 interest rates)^(n Period) with interest rates express in per 100.
Since the interest rates are per annum, therefore you have to divide it into appropriate number of monthly renewal.
(i)
Ang:
Interest rates per month: 0.025/12 = 1/480.
Since it is renewed every month, therefore the compounding interest rates per month is at 1/480 for 36 months.
Therefore: RM10000 x (1 1/480)^36 = Amount received after 3 years.
Bakar:
Interest rates every 3 months: 0.03/4 = 3/400.
Renewed every 3 months, so, compounding interest rates per 3 months is at 3/400 for 12 period of 3 months.
Therefore: RM10000 x (1 3/400)^12 = Amount received after 3 years.
Well, I guess after my calculation, you should be able to count Chandran’s receivable as well.
(ii) Again, this is a subjective question. So, please think about it yourself
2 (a) My additional maths knowledge is kinda rusty, so I am not sure how to count this if you’re asking for a method or formula. But, if you are to count manually (which is to add it up to 18 times), I can show you how. Here’s how:
Year 1: RM300 x (1.08) = RM324
Year 2: (RM 324 RM300) x (1.08) = RM673.92
Year 3: (RM673.92 RM300) x (1.08) = RM1051.8336
Year 4: and so on…
2 (b) This is similar, but instead of counting it until Year 18, you count it until the amount reached RM25000.
I’m not sure if my calculation helps, but I hope it does
June 6th, 2007 at 7:08 pm
ey,..
bleh ke gna compound interest utk solve question no 1(c)?
one more, utk question 1(b), klau nk kira total income utk bakar n chandran, kena guna amount monthly pay yg mana satu?..monthly pay yg first month for 1st year or last month for 1st year?..help me please..
June 6th, 2007 at 7:53 pm
For question 1(c), check the solution i posted up. Since the question didn’t mention anything, let’s assume the interest is compounding. It makes more sense because nobody withdraws their interest when renewing their Fixed D. Think about it.
For question 1(b), the question is very unclear. So, I believe you start reducing Bakar and Chandran’s income on 2nd year’s January, based on their the income on December of 1st year.
Ask your teacher, I believe your teacher wouldn’t mind clearing this small uncertainty.
June 7th, 2007 at 5:14 am
June 7th, 2007 at 9:13 am
Without the question, I can’t even give you any guide or help. If you’re asking me how to calculate standard deviation, then I can only tell you to refer your textbook for the formula.
June 7th, 2007 at 4:30 pm
thanx a lot!!
i really appreciate it!
June 7th, 2007 at 5:45 pm
You’re welcome
June 15th, 2007 at 6:13 pm
hello… i really hav a probs wit my addmaths project 4 this year… X/ would u like to help me… plezzz
June 17th, 2007 at 8:28 pm
The obesity awareness add math project.
I have just finish this project but i cant post the whole project here, its too long. So if u guys want the answer for the form 4 add math project please message me at leejohnhoii[at]gmail[dot]com. Or u can call me at 012-9280993. This is no spam. and u can add me on msn at louislee_91[at]hotmail[dot]com.
August 3rd, 2007 at 6:54 pm
i cant do my addmath project .. !!!
in tis campaigan, u r required to abtain the heights n weights of 50 student in form 4 & 5.
a) tabulate ur data using the following format .
b) construst a frequency distribution table for the weights obtained using a suitable class interval.
i) represent ur data from the frequency distribution table by using three different statistical graphs.
ii) find the mean, median, mode for the weights of the 50 students.which 1 of the three is the best measure of central tendency to represent the data? expain ur choice.
August 3rd, 2007 at 8:07 pm
Oh! All these are on Statistics?
a) Following format? What format?
b) Since you are constructing a frequency distribution table for Weight, I guess your table should look something like this:
+-----------+---------+
|Weight (kg)|Frequency|
+-----------+---------+
| 31 - 35 � | � X X � |
+-----------+---------+
| 36 - 40 � | � X X � |
+-----------+---------+
| 41 - 45 � | � X X � |
+-----------+---------+
Finding mean, median and mode? I believe you do know how to find it
August 4th, 2007 at 1:27 pm
can you give me -the introduction like the history,moral values,and any other information
about question ang,bakar n chandran……..
-the problem solving-2method
-exploration-1 method
-conclusion
please!!!!!PLEASE………………..
August 4th, 2007 at 1:46 pm
Hi huda.
Questions OTHER than calculation is for you to find it out for yourself. I cannot just feed anyone with answers and you all just copy and paste. I give tips and guides. NOT ANSWERS!
August 4th, 2007 at 11:44 pm
referring to the addmaths project 2007 question 2(b) i.e.
b) If Chandran starts his investment with RM500 instead of RM300 at the same interest rate, calculate on which birthday will the total investment be more than RM25000 for the 1st time,
there is a bit of a mix up as they did not mention if Chandran continued to invest RM 500 on each of Johan’s birthday as he did in question 2(a). The only thing it did mention though was that the interest received remained constant. so here, you should NOT use the same method as you did to answer question 2(a), that is by doing this:
Year 1: RM500 x (1.08) = RM 540
Year 2: (RM 540 + RM500) x (1.08) = RM 1123.2
Year 3: (RM1123.2 + RM500) x (1.08) = RM xxx
Year 4: and so on…
instead, the geometric progression formula should be applied. that is:
Sn = [a(r^n – 1)]/(r – 1)
here, the Sn = 25 000, a = starting amount = 500, and r = common ratio = 540/500 = 1.08 and n refers to the first time the total investment exceeeds a value of RM 25000.
as the total investment must exceed RM 25000,
[a(r^n – 1)] / (r – 1) > 25 000
[500(1.08^n – 1)] / (1.08 – 1) > 25 000
[500(1.08^n – 1)] / (0.8) > 25 000
500(1.08^n – 1) > 25000 x 0.8
500(1.08^n – 1) > 2000
1.08^n – 1 > 4
1.08^n > 5
n > (log 5) / (log 1.08)
n > 20.9
Therefore, the total investment will be more than RM 25 000 for the first time on Johan’s 21st birthday.
August 4th, 2007 at 11:56 pm
oz, thanks for the head up. I believe you have a point there. And I think your answer makes more sense than mine. Updated the entry
Anyways, I did the addmath project myself for my form4 and form5, and there’s always gray area in the questions. The question is usually unclear, like for this year, question 1(c) is unclear. It doesn’t mention that whether the interest is kept in as capital or not. Though I believe, it may make no sense if one withdraw their interest whenever they renew their fixed deposit.
August 8th, 2007 at 2:40 pm
i had already know the answer for this project. but the problem is that i had no any idea about on how to the introduction………. :unsure:
August 8th, 2007 at 10:02 pm
please….can u help me…..i need all the answers for this project…i even dont know how to start…its crazy…argghhhhhh……it really make me sick!!!!!!
August 8th, 2007 at 10:12 pm
For how to start, ask your friends or teacher.
For the calculation, I believe I did most of it. Just refer to the entry.
The addmath project isn’t that hard. For the 2 years doing the project, I find the hardest part in the project is doing the calculation. Introduction and all the other writing part are easy. Besides, you don’t have to worry much about the other sections because they don’t carry as many marks as the calculation part. And don’t forget that this project only helps you to understand what you’ve learn in Additional Maths. If I’m not mistaken, this project DOES NOT carry marks for your SPM. Don’t worry too much about it.
Good luck
August 8th, 2007 at 10:28 pm
hi~~
could anyone please help to explain and give a sample answers for the following questions:
c) Calculate the standard deviation of the weights by using three different methods. (Note: Include “entering raw data into a calculator” as a method]
d) What conclusion can you draw from the standard deviation obtained in part c?
i’m only using it as a reference, thanks!
August 8th, 2007 at 10:42 pm
If you’re using Casio fx-570ms calculator, I might be able to help you.
First, you must change the mode of your calculator to SD. Press “Mode” 2 times and press 1 to choose SD.
Once you are in SD mode, you can start entering the data. Enter each data follow it by M+. For example, let’s say your data consist of; 45, 45, 50, 52, 60, 63. So, you press 45, then M+, then 50, then M+, and so on. As you add your data, the value of n will increase.
After all data is added, you can can find the Sum of all data, Variance or Distribution by just pressing few buttons. Just press Shift 1, 2 or 3, and you can find them already.
August 9th, 2007 at 4:32 pm
thanks!
August 9th, 2007 at 5:28 pm
may i noe de solution about the add math project question b :
based on the information given and the data collected , determine the percentage of students that are underweight and the percentage of students that are obese by drawing an ogive ..
can u show me the way of drawing ?
August 9th, 2007 at 6:05 pm
Everyone have different data sets, and base on the data, draw an ogive. Refer to your reference book, it should show what data you need to find and what data to plot in to the graph. If my memory serves me right, you need frequency, end-point of the data range, and also cumulative frequency.
August 9th, 2007 at 8:33 pm
I think you have heard this question before.
Calculate the standard deviation of the weights by using 3 different methods
[Note: Include “entering raw data into a calculator]
Well, I’m using canon F-720i, do you know how to calculate it? Based on what you have taught a person before, how can I paste my work on the paper? I can do it well by using formula, but the problem now is I don’t know what is 2 more methods that we have to use. Can you guide me?
Thanks.
August 10th, 2007 at 12:52 am
Hi Angel.
I’ve never use a canon calculator, so I can’t really help. Check your calculator’s manual and see if it does have any statistic calculation mode. I guess to explain this method, you just have to write what button you pressed and what result does it give you.
And for another method, maybe you can use Microsoft Excel to count. You can use VARP() to count variance and SQRT() to count square root. Let’s say you have all the data from cell A1 to A20. Then you just put the formula =VARP(A1:A20) in a new cell, say A21. To get the standard deviation, enter =SQRT(A21) in another new cell, say A22. There you go, you got standard deviation on A22.
August 10th, 2007 at 3:49 pm
may i noe what is de purpose of standard deviation ?? thanks you very much
August 10th, 2007 at 4:43 pm
For stuff like this, you can easily find them at Wikipedia or Google.
Here’s a wikipedia article on standard deviation.
August 11th, 2007 at 3:36 pm
Thank you for yo tips. 1 more question..What is my introduction should about? I have to write about the Obesity Awareness Campaign or about addmath? Its quite hard to do it because my teacher doesn’t want to teach us and everyone have to do it all by themselves.
August 11th, 2007 at 11:02 pm
Hi, I need help on the conclusion for the Obesity Awareness Campaign. I cant think of what to write. It is all that is left in the project.
Thanks.
August 13th, 2007 at 8:44 pm
Perhaps you can write about obesity awareness in your school? I’m not sure myself either.
When I was in Form 4, the question is about AddMath marks in my class, similar to you all, only that you all is taking the weight of your classmates. For that project, I wrote introduction on the history of Statistic. And in Form 5, the question is about Water Tanks problem in a neighbourhood. I wrote about the history of water tanks for introduction. I guess it is up to you to write.
For conclusion, just write the result of your findings, and what can you conclude from your calculation. This means that you should know what you are calculating, and what each calculation means.
August 14th, 2007 at 2:14 am
im doing the ‘obesity awarness….’
i need to write the appriciative,objective of investigation n method of investigation but i’m not very know how to do these.
can u pls explain need2 write wat?
1)is it in appreciative need2 write thanking2 who n who?or somemore?
2) what r objective of investigation n method of investigation mean ?
what should i write in these?
3) what can write in Making conjecture (means do a early prediction) abt this project?
4) who can give me the website which have the example of doing add math project? bcoz i don’t kno the correctly steps n working to complete a add math project.
Thanking to whose can help can!Thank you!
August 14th, 2007 at 10:01 am
Appreciative? Do you actually need to write that? Or is this the new thing taken account in the AddMath Project for this year? Well, like the name suggested, appreciative, I guess is a page thanking whoever that has help you with this project. I hope you don’t forget to thank me
Objective of Investigation is new to me. I’ve never did this in my project. Well, from my understanding of the word “Objective”, I guess you write about the goal of the investigation. As for Method of Investigation, well, it is pretty self-explanatory. Just explain the method used to find the answer!
Making Conjecture is usually for Further Exploration section in the question. Just write out your prediction or speculation of the answers, and then conclude that whether your conjecture is acceptable or not after your calculation.
If you dropped by here via Search Engine, then you know which site to go for your AddMath guides
August 14th, 2007 at 5:34 pm
hi
could anyone please help to explain and give a sample answers for the following questions:
c) Calculate the standard deviation of the weights by using three different methods. (Note: Include “entering raw data into a calculator” as a method]
the three method is Formula 1 , formula 2 n calculator or microsoft exel…
can u please tell me wat is Formula 1 , formula 2 n calculator and how to use it…my calculator model is casio fx-350ms…thans
August 14th, 2007 at 6:22 pm
Hi Grace. Please use the Edit function instead of posting so many comments.
Anyways, for question (c), I believe I show all 3 methods, which are:
1. Formula
2. Calculator
3. Microsoft Excel.
I am not familiar with Casio fx-350ms, so I suggest you check your calculator’s manual and see if it has Statistic function or not. If I am not mistaken, that model don’t have statistic function.
August 14th, 2007 at 8:19 pm
Thanx anyway
August 15th, 2007 at 4:45 pm
Hi
Do anyone noe how to use the microsoft excel??? How to insert the fornula inside the table??? like sum of fx got the symbol for summation of one…….
August 15th, 2007 at 9:06 pm
Do you mind to teach me how to calculate standard deviation by excel?
August 15th, 2007 at 11:31 pm
Refer here.
If you don’t understand it, well, I’ve created a Spreadsheet for public viewing.
http://spreadsheets0.google.com/ccc?key=pM8Fh78JGUKgkgHitJkgKPg&hl=en
August 16th, 2007 at 1:45 am
Hi
I’m not sure whether my question is related to the topic..
I have tried to use the references at kongsiproject.com for my Add Maths folio, but the website requires that you register for an account to view the completed projects. The problem is that when I tried to submit my application:
Janice says:
Could you please help? Or maybe suggest a website that deals with this issue?
Thanks!
August 16th, 2007 at 2:02 am
It’s a glitch in that site. I can’t solve it for you. Contact that site’s administrator, not me
August 16th, 2007 at 5:27 pm
Hi
Can anyone explain the following question:
1) Repreasent your data from the frequency distribution table by using three different statistical graphs.
The three different statistical graphs….. What are they?
Thank You…
August 16th, 2007 at 6:07 pm
Histogram? Line Graphs? I can only think of 2… I’m not too sure about this myself too :unsure:
August 16th, 2007 at 10:15 pm
Hi…
Just wanna ask someone who noe…
How to find standard deviation by using calculator and microsoft excel??
August 16th, 2007 at 10:27 pm
Read the comments. Please, don’t make me delete your comment again.
August 17th, 2007 at 12:29 am
Sry lah..
i oredy read de comment but still don understand…
i just wanna noe more detail so dat i can do a quality work..
August 17th, 2007 at 1:50 am
I’ve explained it. I’ve even created an example excel worksheet. If you still don’t understand, then you should learn how to use Excel.
August 18th, 2007 at 8:33 pm
Hi.. I would like to ask something.. I’m doing the “Obesity Awareness Campaign” project.. They required us to calculate the standard deviation using three methods.. I’ve read your comments, which is to use formulae, calculator and excel.. Do we need to prove it? I mean like, if i used calculator, how do I prove that I’ve used calculator? The teacher wouldn’t know right, if i didn’t state it out in the project paper.. So, how to prove that I’ve used calculator? As in, do we need to write down the calculations or whatsoever?
Thanking you in advance..
August 18th, 2007 at 9:58 pm
Hi…
Thanks
i would like to ask how to write the introduction? Teacher say need to include history or moral or values… but i don know how to start it… and also the conclusion… Wat to write about the conclusion? Is it about the formula?
August 18th, 2007 at 10:52 pm
If you want to prove to your teacher that you’re using Scientific Calculator, well, you can take a picture of it, and the write “step by step” (eg: what button to press) to achieve the answer. If you’re too lazy to take a picture of your calculator, perhaps you can just write what will you see in the calculator screen. I guess you just write something that is understandable by your teacher, and that your teacher are able to do the same thing using his/her own calculator. That should be sufficient enough.
As for Excel, you can just print out the your excel worksheet excerpt, and you label the cell that contains formula. My teacher accept that kind of presentation. Too bad I don’t keep the soft copy of my project, if not I will present it to you as a guidance purpose. I don’t have a scanner/camera as well. Sorry
For Introduction, well, just like what your teacher say, just write history. Since it is about obesity, why not write about the awareness of being fat in your school? Just a suggestion
You don’t write about the formula for conclusion. You write about it in Method of Investigation. That is where you explain about the formula and method used. You write about the answer for your conclusion, and this is usually to conclude what you have in the Further Exploration and the project as a whole.
August 19th, 2007 at 1:00 pm
Thanks…
And also one question… how to determine the percentage of students that are underweight and bese? What are the statistical graphs needed? :unsure:
TQ.
August 19th, 2007 at 1:30 pm
Frankly speaking, I am not too sure about it too. I think you will need an ogive to find the answers. The underweight people should be the people at the bottom of the the ogive before the first curve curve and obese people should be people after the 2nd curve.
I’ve created a mock ogive for your convenience.
I dare not say this is correct, I guess you still have to refer to your teacher or friends. It’s been a while since I’ve touched anything related to statistics. X/
August 19th, 2007 at 3:12 pm
Thanks for the detail…
There are some question that i dont really know how to do…
1) About the conclusion that you can draw from the standard deviation.. Need to conclude what? The answer of the standard deviation only?
2) As a student, what can i do to make the campaign success? I have to write about what? The campign?
Hope u can help me… I really appreciate your help… Thx..
August 19th, 2007 at 4:10 pm
Then you have to understand why are you calculating standard deviation. You have to understand the figure that you calculated means. Read the question. This is out of my scope already, because I forgot most of the stuff I learned in secondary school.
How do you make the campaign success? Well, what do you think? This is a very subjective question, I guess I don’t have to feed you with the answer as well. Think, think, think
August 20th, 2007 at 12:35 pm
Thanks for the tips!.. :happy:
August 20th, 2007 at 1:17 pm
hi
i wanna ask 1 question..
how do u draw an ogive graph using computer?
thanks
August 20th, 2007 at 1:43 pm
how to do checking method for add maths project form 5
August 20th, 2007 at 1:54 pm
I am not too sure how to draw an ogive using computer. I draw the ogive manually using a graph paper on my project last time.
As for checking, I’m not too sure myself. Perhaps do a reverse calculation? Like how to get the figure in your questions from your answers. I’m not too sure myself too.
August 21st, 2007 at 4:18 am
hey..
:happy: 
thanx a lot seyh!
last yr i did the project work, but then it was not me who actually did all the calculations n ol, i basically copied the answers from my senior.
but this time, i manage to do on my own (though i didn’t really squeeze my brain for ALL the answers, hehe)..this is bcoz i found ur page n decided to try it on my own, like you did.
i couldn’t ask for my teachers’ help as we have to do it during the school holiday n we only have like, a week to finish doing it..practically, we have to do on our own loh..
so, thank you for sharing and wish you all the best!
August 21st, 2007 at 8:43 am
do we need to write penghargaan ,rumusan..those things ??
August 21st, 2007 at 9:49 am
As I know, you don’t have to do penhargaan, but you have to do rumusan/kesimpulan. BUT format may have change in the past few years (I am a Form5 student in 2005).
August 21st, 2007 at 6:41 pm
i still dun get it..:( y dun jz giv us the exact project? X/ u know..we gt tonnes of homeworks..n REVISIONS!! so plzzz…i will appreciate if ya giv da exact project answer :happy:
August 21st, 2007 at 6:44 pm
oops @@ i nvr refer wats ur options..anewayz..thx fer the guides :happy:
August 21st, 2007 at 8:54 pm
A lot of homeworks and revision doesn’t mean you can just download and print the project. If that is the case, then there’s no meaning to this project. That’s why I don’t give you all everything, which includes in the introduction and all the other theory part.
I know, its pressuring when you have so many things to do and you have to meet the dateline. I’ve been there, done that. Time management is everything. Good luck
August 22nd, 2007 at 7:43 am
so the rumusan will do in English or BM?
August 22nd, 2007 at 12:21 pm
janice, are you studying your Add Math in English or BM? I am not sure when you all start learning Add Math in English, because the time I studied mine (in 2004 and 2005), it’s in BM. So naturally, my projects are in BM too.
August 22nd, 2007 at 3:30 pm
thanks guys..
thanks 4 sharing those things…
it help me a lotzz…
August 22nd, 2007 at 10:35 pm
thanx alot for ur help….
:blush: :happy:
August 23rd, 2007 at 12:05 am
hello….i’d like to say thanx.havnt start d work yet but thank god i found this blog
August 23rd, 2007 at 7:25 pm
i m doing d “obesity awarsness campaign”….
erm….about d introduction
may include history/moral/values and other information RELEVANT TO THE TASK
den it mean write about statistics or obesity?
i c ur post b4….
1 u say write bout history of statistics n other 1 u say write bout obesity awareness in skul
relevant to the task….den wat should i write?
thx
August 24th, 2007 at 8:36 am
How to do graph method for add. maths project work 2007?
August 24th, 2007 at 10:05 am
whY, you could write both. Split your introduction into 2 parts. First, you write about the obesity campaign awareness, then from there try to divert to concentration into statistic, and you write about history of statistic. Just a suggestion. I don’t know what’s the exact question and instruction from your teacher.
jessy, to draw a graph, you need to tabulate your data. Read your text or reference book. You should be able to know how to tabulate your data and from that tabular data, transfer it to a graph.
August 24th, 2007 at 11:01 am
how to tabulate the data. i dont know.plz help me….i must submit my project on monday
August 24th, 2007 at 11:10 am
Hello there, thanks for your guide. I accidentally found your blog. :happy:
Can you give any suggestion on using which program to draw those graph ? Like ogive, histogram, and a frequency polygon? I wondering using what to draw the graphs as the Microsoft Office can’t give me “upper boundary” and “lower boundary” for those graph.
THanks.
August 24th, 2007 at 11:27 am
Tabulate data means to put all your data into a form of table. No offense, if you don’t know how to do that, then I guess should rethink whether you should take up additional maths in your SPM or not. It’s a simple thing that you’re also doing in your modern maths.
As for drawing graph, well last time, I manually draw ogive using graph paper. But I think in real-life statistic, you usually don’t see the obvious curve in ogive (upper boundary and lower boundary). Estimation should be good enough.
August 24th, 2007 at 11:50 am
Hi..that for your guide..That’s great…but i would like to ask another question..i really no idea about the conclusion in standard deviation..can you please give an example or other guide? i read about standard deviation in wikipedia but i still cant understand..how do i write the conclusion on standard deviation??
Help me…THANKS very much!!
August 24th, 2007 at 12:55 pm
Well, it’s not that hard to relate standard deviation to your project. You are doing statistics based on the weight of your class, right? Now, if you’ve read the standard deviation article on wikipedia, it says that standard deviation is the measure of spread in the populated data. This means that the bigger the value of the standard deviation, the larger the spread in the the populated data, the less consistent your populated data.
So, what can you derive from standard deviation? You are calculating the spread of the weight of your classmates. If the value of the standard deviation is really big, this means that your class have really thin and really fat students. And that means that the weight of the students in your class is not consistent. If the standard deviation value is small, this means the weight of the students is your class is consistent, and you don’t see really fat and really thin student in your class. Well, that is to put it bluntly. The keyword there is consistent.
August 24th, 2007 at 1:02 pm
If the data points are close to the mean, then the standard deviation is small. As well, if many data points are far from the mean, then the standard deviation is large. If all the data values are equal, then the standard deviation is zero.
This is what i got from the wikipedia…is it meant that to get know the standard deviation is large or small, we have to compare with the mean??
My result on mean is 53.06 and my standard deviation is only 8.94…How is it??The standard deviation is very large…is it correct?The thing is i dun know how to differentiate the standard deviation is large or small.
Anywhere, i got some useful information form your guide..
Thanks very much ya!
August 24th, 2007 at 1:17 pm
here is my data..i hope u can explain well to me about the standard deviation…
Really thanks for ur help…
August 24th, 2007 at 1:20 pm
Yes. That is what standard deviation is. If you’ve notice in your standard deviation formula in your text or reference book, you should notice that you need to calculate the mean before you can calculate variance or standard deviation. You should get the drift by now
Well, I guess it’s up to you to decided whether the standard deviation is very large or not. Maybe you can compare the answers from other classes, and you make judgment from there. Answers like this is rather in the gray area because there is no right or wrong. A standard deviation of 5 can be high, depending on what kind of data you’re doing. I can’t make the judgment for you. You decide it
August 24th, 2007 at 1:46 pm
ok….I think the standard deviation is large…THANK YOU!!!
August 24th, 2007 at 2:19 pm
Hello there again
why is it my standard deviance calculated from excel or calculator and from the formula are different? which answer should i choose as a conclusion ?
thanks
August 24th, 2007 at 2:22 pm
hye..
sory to interrupt u..
my teacher gave me a rubrid bout diz project..
here they are…
we need to do introduction, task specification n problem solving…
my quest is..
we should choose at least 2 suitable problem solving method…
but…
i dont understand..
what should i solve?
what is the probs?
we just need 2 do stats only?ryte?
pleaz ya..
August 24th, 2007 at 2:39 pm
aloha, welcome back
There’s always a slight difference between the answers you get from excel and calculator. That is because the decimal place are different. Try to limit yourself to 2 or 3 decimal places, and everything should be OK. If there’s a big difference, then perhaps you’re using the wrong formula.
@isha: Solve the questions of course! You can’t be getting the rubric without the questions! You should write about the method you chose to solve the problem in your questions. Let’s say you use formula, so you write the formula, then explain what the formula calculates and what does each symbol stands for.