Archive

Archive for March, 2012

Quick Review Cards and reviewing for the exam

March 14th, 2012

You may have seen that I had re-uploaded the Quick Review Cards in the Review section. The content on the cards has not changed from earlier — there was an issue with formatting that I fixed.

But let me take this moment to explain the use of the cards — these by no means cover all possible list questions, topics, etc. What I was trying to do with these cards is help focus your review — these can help point out which readings you may need to go back to an re-review.

As we get closer to the exam, you should be spending less and less time on the topics you know well, and more time on the areas where you are weak.

I know it’s not fun to focus where you’re having difficulty, but too often I’ve seen failing exam scores come back due to highly uneven syllabus coverage. If you know something very well, you do not need to be spending your limited review time on it. I think these cards are a good way to highlight the holes in your coverage.

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Erratum: FE-C180-11, Part 2

March 13th, 2012

I received the following email:

I have a question about some of your notation for your copula example for Part 2 of the FE-C180-11 study note starting at time 11:44 on the video:

In the video you have F ( X=0 , Y=1 ) = C ( FX-1(0) , FY-1(1) ) = C ( .9 , .99 )

Would this be more appropriate if written as: F ( X=0 , Y=1 ) = F (FX-1 (.9) , FY-1 (.99) ) = C ( .9 , .99 )
Or possibly: F( X=0 , Y=1 ) = C ( FX (0) , FY (1) ) = C ( .9 , .99) [The inverses have been removed from this line].

(sorry, I can’t get the math notation better in the blog).

This is correct in that my notation was wrong in doing the copula example.

It should have been the bottom formula:

F( X=0 , Y=1 ) = C ( FX (0) , FY (1) ) = C ( .9 , .99)

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