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 Probability Old Exam P Forum

#1
09-27-2006, 02:53 PM
 Tom Actuarial Outpost Administrator Contact me: Send me a PMor email me tom.troceen@dwsimpson.com CAS SOA COPA Join Date: Jan 1987 Location: Sitting in front of a red button w/ your name on it College: FSU ActSci Alumni Favorite beer: Root Posts: 12,785 Blog Entries: 7
Done with the exam? Share your Exam 1/P study notes here!

You can post your notes online using the upload button after clicking post reply, or you can always email them to me at tom(at)actuarialoutpost.com. If that isn't easy enough, just PM me here and I can send you my fax number or we can work something else out!

Thanks!

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All posts in this thread that do not have notes attached will be deleted!

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Thanks again,

Tom

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Questions? Contact me at tom@actuarialoutpost.com or send me a PM here.
#2
11-19-2006, 06:16 PM
 theteacher the member Join Date: Aug 2006 Location: Atlanta Posts: 79
Discrete Distributions

I typed up these tables to help me memorize the discrete distributions. I started each study session by filling in everything I could remember, then reviewing the things I didn't remember. I did the same with the continuous distributions, but I can't find the file

I found that knowing all the distributions like the back of my hand was somewhat helpful during the exam, but not nearly as helpful as having done tons of problems.
Attached Files
 Discrete Distributions.doc (126.0 KB, 20023 views) Discrete Distributions Blank.doc (38.0 KB, 9351 views)
#3
12-08-2006, 12:35 PM
 Tom Actuarial Outpost Administrator Contact me: Send me a PMor email me tom.troceen@dwsimpson.com CAS SOA COPA Join Date: Jan 1987 Location: Sitting in front of a red button w/ your name on it College: FSU ActSci Alumni Favorite beer: Root Posts: 12,785 Blog Entries: 7

We had a member that did not have Microsoft Word to open theteacher's notes, so I'm posting it in Wordpad format for people that do not have access to Microsoft Office. Enjoy

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Questions? Contact me at tom@actuarialoutpost.com or send me a PM here.
#4
11-28-2012, 10:20 AM
 Tuberose SOA Join Date: Nov 2012 Location: Cambodia Posts: 25

Quote:
 Originally Posted by theteacher I typed up these tables to help me memorize the discrete distributions. I started each study session by filling in everything I could remember, then reviewing the things I didn't remember. I did the same with the continuous distributions, but I can't find the file I found that knowing all the distributions like the back of my hand was somewhat helpful during the exam, but not nearly as helpful as having done tons of problems.
Good sharing!!! I found it a bit difficult too. I try to understand its concept and the formula. Hope to pass the exam on January!!
#5
12-28-2012, 06:28 PM
 SALT1 Member SOA AAA Join Date: Apr 2003 Location: Des Moines, IA College: University of Northern Iowa Posts: 558

Coaching Actuaries just authored a brand new study manual for exam P/1, and we put together this review of the prerequisite math you should know as you begin preparing for exam P/1:
http://www.coachingactuaries.com/res...erequisite.pdf

In the past, we used to get a lot of emails from new exam candidates who are rusty on their math skills (especially career-changers) and who were looking for a review of the calculus and math needed for P/1. Hopefully this will be a useful review for those who need it.
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Coach Kester
coachingactuaries.com
#6
07-19-2013, 08:57 AM
 pbarbarino CAS SOA Join Date: Jun 2013 Favorite beer: Long Hammer IPA Posts: 3

Thanks!!
#7
07-20-2014, 10:13 PM
 aweng Member CAS Join Date: Jul 2014 Posts: 130

Quote:
 Originally Posted by theteacher I typed up these tables to help me memorize the discrete distributions. I started each study session by filling in everything I could remember, then reviewing the things I didn't remember. I did the same with the continuous distributions, but I can't find the file I found that knowing all the distributions like the back of my hand was somewhat helpful during the exam, but not nearly as helpful as having done tons of problems.
This is so helpful. Thank you so much!
#8
12-08-2006, 01:12 PM
 Kazodev Member SOA Join Date: May 2004 Posts: 3,393

In the formula for Variance of Uniform you have a mistake, the term you are subtracting should be $\left( \frac{\sum_{i=1}^{n} x_i}{n} \right) ^2$ I believe. Also, at least for me, where it says $n \in ...$ it's coming out weird, is that supposed to be $n \in Z^+$ ?
#9
12-08-2006, 02:01 PM
 daaaave David Revelle Join Date: Feb 2006 Posts: 3,103

Quote:
 Originally Posted by Kazodev In the formula for Variance of Uniform you have a mistake, the term you are subtracting should be $\left( \frac{\sum_{i=1}^{n} x_i}{n} \right) ^2$ I believe. Also, at least for me, where it says $n \in ...$ it's coming out weird, is that supposed to be $n \in Z^+$ ?
I agree with both of these comments. Also, I don't find it useful to have a formula for the variance of random variable that is uniformly selected from an arbitrary set of n elements, but I can see it being useful to have a formula for the variance of a discrete uniform[1,n] random variable. (I don't actually know what that variance is off the top of my head, so I obviously don't find it that useful, but I do find it useful to know that the variance of a uniform[0,1] random variable is 1/12.)
#10
12-08-2006, 02:14 PM
 Kazodev Member SOA Join Date: May 2004 Posts: 3,393

In general the variance of U[a,b] is $\frac{\left( b - a \right) ^2}{12}$ I think.