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From: "Roger Stafford" <ellieandrogerxyzzy@mindspring.com.invalid>
Newsgroups: comp.soft-sys.matlab
Subject: Re: statistics
Date: Sat, 2 Feb 2008 19:12:01 +0000 (UTC)
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"Roger Stafford" <ellieandrogerxyzzy@mindspring.com.invalid> wrote in 
message <fo2ach$bvp$1@fred.mathworks.com>...
> "Hesham " <heltaher.nospam@mathworks.com> wrote in message <fo26im
> $q2g$1@fred.mathworks.com>...
> > Hi all,
> > I am looking for an approximation a formula for calculating
> > the mean and variance of x , x^2 , x^3 , x^4 , when x is a
> > random variable with normal distribution with ux & varx.
> > If someone can help, please do.
> > Thanks
> > Hesham
> -----------
> See http://en.wikipedia.org/wiki/Normal_distribution#Moments
----------
The above Wikipedia moment formulas will give you the same answers that John 
D'Errico gave you in the "Mean and Variance" thread.

Roger Stafford