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  #151  
Old 07-21-2008, 09:40 AM
gametime50 gametime50 is offline
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Default 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
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  #152  
Old 07-21-2008, 12:10 PM
Actuarialsuck Actuarialsuck is offline
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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  
Old 07-21-2008, 01:01 PM
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vjvj vjvj is offline
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Quote:
Originally Posted by Actuarialsuck View Post
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  
Old 08-15-2009, 07:28 PM
LukeSkywalker LukeSkywalker is offline
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are these questions that mr broverman posts from the actex manual practice exams?
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  #155  
Old 07-26-2012, 01:59 PM
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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  
Old 07-26-2012, 02:05 PM
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Sure, I'll PM you a copy.
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  #157  
Old 07-26-2012, 02:09 PM
daaaave daaaave is offline
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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  
Old 06-10-2013, 09:03 AM
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Thank you very much for the work done
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  #159  
Old 12-10-2014, 02:31 PM
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Whenindoubtcalculate Whenindoubtcalculate is offline
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thank you
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