Archived

This topic is now archived and is closed to further replies.

Math Stats Discussion

Post here any questions and I'm sure IBSurvivalors will reply and help

Share on other sites

Does anyone know what is the focus of the exam in general?

what are the questions that kept coming the previous test, and it's possible to come now?

any help on how to divide the time between the GDC and manual solving will be appreciated.

Share on other sites

Does anyone know what is the focus of the exam in general?

what are the questions that kept coming the previous test, and it's possible to come now?

any help on how to divide the time between the GDC and manual solving will be appreciated.

I think there has to be Hypothesis testing because they can do a lot with that. You'll need to know all your basic Distributions, how to find E(X)...etc.

You can type everything on the GDC but you write out everything you did on your GDC

Share on other sites

Does anyone know what is the focus of the exam in general?

what are the questions that kept coming the previous test, and it's possible to come now?

any help on how to divide the time between the GDC and manual solving will be appreciated.

usually, they tend to cover a part of hypothesis testing, chi-square, expectation algebra, and confidence interval at least once. Some calculation problem with Poisson distribution or something like that can come up.

The good thing about Statistics is that it is fairly predictable. You can be sure of what is going to come out, and what not.So I think you will be fine.

about the use of GDC. Yes you can, and you do not have to write it down on what you did. You can get straight 7~8 marks by stating correct p-value and go straight into hypothesis testing. However, if your p-value is wrong, you are losing 8 marks straight away. So you have to be careful about it. If you are not sure of the answer, manual approach might be better, but at the same time, you only have an hour; no time to waste!

Share on other sites

Type I and Type II errors - do they test them? can you tell me what it is we have to do with Type I and II errors?

Share on other sites

Type I and Type II errors - do they test them? can you tell me what it is we have to do with Type I and II errors?

everything. it is not a hard concept at all.