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cscott
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Homework Statement
Compute the variance of the random variable X given by
[tex]V(X) = \sqrt{E((X-E(X))^2)}[/tex]
where E(X) is the expectation value of random variable X
Homework Equations
Hint: Use parameter differentiation
The Attempt at a Solution
I have no idea what to do here. I've never taken a class in probability and I have never heard of parameter differentiation. I've seen definitions of variance the same as above minus the square root sign so I'm confused.
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