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#151
07-21-2008, 10:40 AM
 gametime50 Member Join Date: May 2008 Posts: 82
Unconditional Variance

How often does this question come up on the exam? i have been doing quite a few problems and havent seen one on a practice exam but a few here and there in review problems
#152
07-21-2008, 01:10 PM
 Actuarialsuck Member Join Date: Sep 2007 Posts: 6,119

I've never seen a 1/P problem that required it. There was one I believe where you could've used that formula which would've been a quicker route. It does appear on 4/C so you will eventually have to know it.
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#153
07-21-2008, 02:01 PM
 vjvj Note Contributor Non-Actuary Join Date: Nov 2005 Location: IL Studying for MFE Posts: 7,435

Quote:
 Originally Posted by Actuarialsuck I've never seen a 1/P problem that required it. There was one I believe where you could've used that formula which would've been a quicker route. It does appear on 4/C so you will eventually have to know it.
"Required it" might be the key phrase here. I don't recall having seen this formula before you wrote it, but I would certainly have solved the problem just using the equations for E(blah) and E(blah^2) that you showed in your spoiler . Knowing the equation would have saved me a few seconds, but not much more.

I would have categorized the problem as "conditional probability" and I certainly saw a whole bunch of those on my exam. But I couldn't say whether or not I saw this exact problem.

In any case, gametime50, you should certainly be ready for a question like this one (whether or not you choose to remember this particular formula).
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#154
08-15-2009, 08:28 PM
 LukeSkywalker Member Join Date: Jun 2009 College: Penn State Alum Posts: 80

are these questions that mr broverman posts from the actex manual practice exams?
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#155
07-26-2012, 02:59 PM
 Klaymen Member CAS Join Date: Oct 2001 Studying for AINS 21 & 22 Posts: 19,423

If someone has a copy of TIA's sample exam 1 for 1/P could you PM me a copy? I am registered for the site and able to download them except my computer at work won't allow it and I'm going to have some time to work on them this afternoon, thanks!
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#156
07-26-2012, 03:05 PM
 daaaave David Revelle Join Date: Feb 2006 Posts: 3,009

Sure, I'll PM you a copy.
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#157
07-26-2012, 03:09 PM
 daaaave David Revelle Join Date: Feb 2006 Posts: 3,009

I lied -- I can't immediately see how to attach a file in a PM and the baby just woke up so I gotta run.
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#158
06-10-2013, 10:03 AM
 LORD SOA AAA Join Date: Jun 2012 Location: Accra, Ghana. Studying for Exam C College: University of Cape Coast Posts: 6
wow

Thank you very much for the work done
#159
12-10-2014, 03:31 PM
 Whenindoubtcalculate SOA Join Date: Dec 2014 Location: Utah, Orem Studying for P College: Utah Valley University Posts: 14

thank you

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