Re: Question for probabilty Please help !!!!

From: Anon. (bob.ohara_at_NOSPAM.helsinki.fi)
Date: 09/26/04

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In reply to: khalsa: "Question for probabilty Please help !!!!"
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Date: Sun, 26 Sep 2004 10:52:10 +0300

khalsa wrote:
> Dear Friends,
>
> Q) If f(x) is a normal distribution function with mean=0 and std dev.=1
> what is the expected value for e^x ie. e to the power x
>
>
>
> E(X)= Integral e^x * f(x) dx
>
> My answer is 0. I don;t know whether it is correct.
>
Well, if the minimum value of e^x is 0, and there are positive values,
then the expected value has to be >0.

This looks like homework, so I'm not going to give you the answer. But
I have seen the calculations and they're not trivial, but on hte other
hand they're not impossible.

Good luck!

Bob

-- 
Bob O'Hara
Department of Mathematics and Statistics
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In reply to: khalsa: "Question for probabilty Please help !!!!"
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