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 From categories: All categories ANNOUNCEMENTS: Feedback - Suggestions ANNOUNCEMENTS: Noticeboard ANNOUNCEMENTS: Quiz 2 Remedial TUTORIAL STUFF: Tutorial 1 - Charts and graphs TUTORIAL STUFF: Tutorial 2 - Descriptive Statistics TUTORIAL STUFF: Tutorial 3 - Probability TUTORIAL STUFF: Tutorial 4 - Discrete Distributions TUTORIAL STUFF: Tutorial 5 - Continuous Distributions TUTORIAL STUFF: Tutorial 6 - Sampling Distributions TUTORIAL STUFF: Tutorial 7 - Confidence Interval TUTORIAL STUFF: Tutorial 8 - Hypothesis Testing for 1 population Q&A: Tutorial 1 - Charts and graphs Q&A: Tutorial 2 - Descriptive Statistics Q&A: Tutorial 3 - Probability Q&A: Tutorial 4 - Discrete Distributions Q&A: Tutorial 5 - Continuous Distributions Q&A: Tutorial 6 - Sampling Distributions Q&A: Tutorial 7 - Confidence Interval Q&A: Tutorial 8 - Hypothesis Testing for 1 population GROUP ASSIGNMENT RESOURCES: Video tutorials
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Dear Students,

As promised, I've made a video tutorial on how to do the group assignment, both excel and how to write your report.

I've also attached hereby a detailed instruction on how to write your report. Read the pdf file carefully and answer the specific question in there and the numbers/outputs you get from Excel. Sample Report or Sample Report

A sample file of Excel is also attached hereby
Sample Excel file or Sample Excel file

Video tutorial

So, what I suggest you to do is:

2. If you don't know how to do something in Excel, look at the video tutorials. If you still cannot do it, you can open the excel file to see the formula or something.

If you are still stuck, feel free to email me. I'll reply ASAP.

Vinh Tran

Update: I've just managed to get the videos live on Youtube, you can view them here, divided into 3 parts due to the Google's stupid 10 minute limits.

Dear Students,

Quiiz for Tutorial 8 on Hypothesis Testing for 1 population is now available.

Tutorial 8 - Quiz by , 21 Aug 2009 15:28

Dear Students,

To test your knowledge on Sampling and Sampling distributions, try this quiz:

or

Vinh Tran

Sampling Distribution - Quiz by , 12 Aug 2009 11:20
12 Aug 2009 11:18
in discussion Hidden / REVISION » Continuous Distribution - Quiz

Dear Students,

As you will be facing the same questions in the final exam, it's important that you know how to do the exercises you did not do well in quiz 2. Try this quiz after reviewing your exercise.

To do the quiz,

or

Vinh Tran

Continuous Distribution - Quiz by , 12 Aug 2009 11:18

Dear Students,

As you will be facing the same questions in the final exam, it's important that you know how to do the exercises you did not do well in quiz 2. Try this quiz after reviewing your exercise.

To do the quiz,

or

Vinh Tran

Continuous Distribution - Quiz by , 12 Aug 2009 11:18

Dear Students,

As you will be facing the same questions in the final exam, it's important that you know how to do the exercises you did not do well in quiz 2. Try this quiz after reviewing your exercise.

To do the quiz,

or

Vinh Tran

Discrete Distribution - Quiz by , 12 Aug 2009 11:17

Dear Students,

In an effort to help you study, review and assess your progress, I've made up the quiz below for you to try. Try to do the quiz without any help/assistance from any material. It will tell you your results and you can review to know which questions you went wrong (if any). If you can pass the quiz, you should be ok. Otherwise, review and practice more.

Try it as many times as you like, not to remember the answer, of course!, but to give you more practice and confidence.

To do the quiz,

or

I will try to make one quiz for each tutorial. So, watch out for new quiz to come and make the most out of the quizzes for assist you study!

Vinh Tran

Tutorial 7 - Quiz by , 12 Aug 2009 11:12

Dear Students,

Please be informed that you don't have to do any exercise before coming to next tutorial.

Regards,
Vinh Tran

Tutorial 7 - Preparation by , 09 Aug 2009 06:57

Dear Students,

Hope that you've had a great mini-holiday and get some refreshments to fight to the rest of the semester.

Next week, as you know, we will have our second quiz. Therefore, I just ask you to do 2 exercises BEFORE coming to class next week, which are 7.6 and 7.29.

See you in class next week!

Regards,
Vinh Tran

Tutorial 6 Preparation by , 31 Jul 2009 13:31

Hi Students,

Please be gently reminded that you will be having your first quiz in the tutorial right after the break on Wednesday, August 5, 2009.

The quiz will contribute 10% to your final grade. Details of the quiz are:

* Duration: 30 minutes
* All material are accepted.
* Remember to bring your calculator.
* Covers: Probability, Discrete Distributions and Continuous Distributions.

Please note that we still have our tutorial AFTER the quiz.

Good luck for your first quiz.

Vinh Tran

Dear Students,

If you have completed "filling in the gaps" in the solution I handed out in class, the full solution is available here for your further checking. Click Here to download the file.

Best Regards,
Vinh Tran

Hi Students,

The exercises you need to complete BEFORE coming to class next week are: 6.1; 6.6; 6.7 and 6.8.

See you in class next week!

Regards,
Vinh Tran

Tutorial 5 Preparation by , 18 Jul 2009 14:27

Hi Students,

The exercises you need to complete BEFORE coming to class next week are: 5.2; 5.5; 5.7 and 5.21.

Please be noted that all these 4 exercises will appear in your quiz and final exam.

See you in class next week!

Regards,
Vinh Tran

Tutorial 4 Preparation by , 09 Jul 2009 10:27

Hi Students,

Please be gently reminded that you will be having your first quiz in the next tutorial on Wednesday, July 8, 2009.

The quiz will contribute 10% to your final grade. Details of the quiz are:

• Duration: 30 minutes
• All material are accepted.
• Remember to bring your calculator.

Please note that we still have our tutorial AFTER the quiz.

Good luck for your first quiz.

Vinh Tran

Quiz 1 (10%) - Week 4 - July 8, 2009 by , 04 Jul 2009 02:07

Hi,

As we will be having the first quiz next tutorial, I would let you guys go very easy on the preparation for the next tutorial. In fact, out of the numerous exercises in your tutorial notes, I just require you to do 2 exercises before coming to the next tutorial: 4.17 and 4.26.

See you all in class next week!

Vinh Tran

Tutorial 3 Preparation by , 04 Jul 2009 02:03

Hi Students,

As I said in the first tutorial, out of the many homework exercises in the tutorial notes (the orange one), I will require you to do some of them, which will be discussed in the tutorial. Remember that, after the tutorial, when you receive more material to study, you still need to do the rest to practice for your own benefit!

For tutorial 2 next week, the exercises that you need to complete before coming to the tutorial is: 3.3; 3.6; 3.26; 3.23 and 3.25. Just 5 out of the total 16 exercises. So, I expect that you will be well-prepared for the tutorial.

See you in class!

Vinh Tran

Tutorial 2 Preparation by , 28 Jun 2009 05:16
17 May 2009 04:17
in discussion Hidden / REVISION » Hlp me in this question

Hi Lisa,

You got it. Just a minor correction. Second pick: $P(R2|R1)=\dfrac{3}{8}$ ;)

Don't worry. Worrying too much will make you panic. The kind of questions will be similar to those in the quizzes.

You're well-prepared. Believe in yourself!

Best of luck!

Re: Hlp me in this question by , 17 May 2009 04:17
17 May 2009 03:22
in discussion Hidden / REVISION » Hlp me in this question

I got it ^^

For P(red and red)
First pick P(red1) = 4/9
Second pick P(red2) = 3/8
and then just multiply them = 4/9 * 3/8 = 12/72

ser im really2 affraid for tommorow
huh.. it seems that i dont have any describe of how the exam situation?
how the question will be outcome….
and all about that … huh
this my first exam in australia and my exam using english question….

Re: Hlp me in this question by , 17 May 2009 03:22
17 May 2009 03:03
in discussion Hidden / REVISION » Hlp me in this question

Hi Lisa,

This is exactly the same as exercise 4.17 that we discussed in class.

Here we are having 2 picks.

1. $P(Red \cap Blue)=?$

• First pick:

Since we have 4 red marbles out of the total of 9 marbles, the probability that we will get a red marble in the first pick is:

$P(Red)=\dfrac{4}{9}$

• Second pick:

This is without replacement (pick out and don't put back, which means in the second pick, we will have a total of 8 marbles left). We don't know if the first pick is red or blue (which means that we don't know how many red and blue marbles are left in the second pick), we need to assume that the first pick is red.

If the first pick is red, we will know that 3 red and 5 blue marbles left for the second pick. Therefore, the probability that we will get a blue marble in the second pick is:

$P(Blue|Red)=\dfrac{5}{8}$

• Conditionally probability formula:

$P(Blue|Red)=\dfrac{P(Blue\cap Red)}{P(Red)}$

Therefore,

$P(Blue\cap Red)=P(Blue|Red)\timesP(Red)= \dfrac{4}{9}\times\dfrac{5}{8}=\dfrac{20}{72}=0.27778$

2. $P(Red\cap Red)=?$

Using the same reasoning as above, try it yourself and post your answer here :)

Re: Hlp me in this question by , 17 May 2009 03:03
17 May 2009 02:45
in discussion Hidden / REVISION » Hlp me in this question

A bag contains 4 red marbles and 5 blue marbles. Two marbles are randomly drawn without replacement.

Find the probability of the event “The first marble is red and the second is blue.”
Find the probability "both of the marble is red"

I cant answer it ser, help me

Hlp me in this question by , 17 May 2009 02:45
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