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Probability Old Exam P Forum

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  #41  
Old 05-15-2009, 08:05 PM
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Default My notes for passing exam P

Here is the pdf I used for reviewing for Exam P. I can't upload the raw tex as it exceeds the upload limit by a few K. If you want it, send a message or email and I'll be happy to provide it.

Cheers!
-Don
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Last edited by Dr. Nuke; 05-17-2009 at 11:55 PM.. Reason: Incorporated comments from optimizer
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  #42  
Old 05-15-2009, 10:27 PM
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When you talk about cont. dist., Pr(X = x) = 0 not F'_{X}(x).

Also V(aX + bY + c) = a^2 V(X) + b^2 V(Y) if X and Y are ind.

(minor issues I guess)
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  #43  
Old 05-15-2009, 11:47 PM
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Thanks!

I had the generic Var expression (that includes covariance) on p. 5, but added a note on p. 2 that this was a special case. Thanks also for noticing my "lazy writing" of the relation between f_X and F_X, that implied an incorrect relationship to Pr(X=x).

I corrected these minor points and uploaded a new attachment.
-Don
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  #44  
Old 05-16-2009, 12:35 PM
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In the first line of Section 2.1.1 the lower limit of the integrals should be .

In Section 2.1.3 the Markov inequality requires that X be a nonnegative rv and a>0.

---

On a minor note, in Section 3.4 your formula for the pdf of a transformation of continuous rv's requires the transformations to be strictly monotonic on their support.

Last edited by optimizer; 05-16-2009 at 12:54 PM.. Reason: Added more
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  #45  
Old 05-17-2009, 11:53 PM
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Thanks for the feedback optimizer. I have noted the Markov requirement and changed the integration limits.

Regarding the inverse transformation, I agree this is a minor point. This was *MY* review sheet, I hope it's useful to others. For me it was a given that a function must be 1-1 to have a definite inverse so I didn't bother writing that explicitly. I just wanted this to be something to remind me of the Jacobian and form of the transform. Thanks for your attention to detail. I'm glad there were only these few nitpicks on the document.

Cheers!
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  #46  
Old 06-25-2009, 02:48 PM
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Red face

Quote:
Originally Posted by unique View Post
how do i print it out it when i went to associated website it only printed as picture and very small.
thanks
Very sorry for just saw your reply.

My solution is :
Please go to my blog > Actuarial Examination – Exam Probability P/1 Shortcuts > right click image > click "view image" > enlarge by left click image

Hope can help you...
Very sorry again for replying late...
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Last edited by ukmactuarialstudent0809; 09-04-2009 at 03:47 PM.. Reason: Link error
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  #47  
Old 07-17-2009, 04:13 PM
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Word Document with my Exam P notes. I wrote verbal descriptions that helped me remember and understand the various distributions. Also included are a number of shortcut formulas I found very helpful.
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  #48  
Old 10-09-2009, 02:07 AM
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Quote:
Originally Posted by matt_madison View Post
I found my old notes from last February, and thought I'd post them. The notes are in the pdf file, and were written using LaTeX. The zip file is the original .tex file for those that want to edit the notes.

These notes were very helpful to me. thank yo so much for posting them. They calmed me down the day of my exam. Thanks again
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  #49  
Old 01-04-2010, 07:47 PM
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Default darth vader rule?

Can somebody please share a statement of the famous "Darth Vader rule". Thanks
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  #50  
Old 01-04-2010, 08:24 PM
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Search function is your friend, love it http://www.actuarialoutpost.com/actu...archid=5130181
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