let represent a random sample from a rayleigh distribution with pdf f(x;theta)=x/(theta)e^(-x^2/2*theta). show that E(X^2)=2*theta
Added by Cameron D.
Step 1
Step 1: Find E(X^2) by calculating the integral of x^2 times the given pdf f(x;theta) from 0 to infinity. Show more…
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Key Concepts
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Sufficiency
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