Re: statistics
- From: "Nasser Abbasi" <nma@xxxxxxxxx>
- Date: Sat, 2 Feb 2008 11:29:10 -0800
"Hesham " <heltaher.nospam@xxxxxxxxxxxxx> wrote in message
news:fo26im$q2g$1@xxxxxxxxxxxxxxxxxxxxx
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
In additions to the references mentioned, I have a table of functions of X
for different distributions below. This was generated using Mathematica.
(middle of the page). It contains the formula for E(f(x)) and Var( f(X))
(no approximation needed, these are exact formulas)
http://12000.org/my_notes/math_502_material/chart_of_distributions/HTML/chart_of_distributions.html
I have few other related statistics material on this page
http://12000.org/my_notes/math_502_material/index.htm
hth
Nasser
.
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