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f(x)=f(x)={█(2/(√2π) e^(〖x〗^2/2)@0 otherwise)┤for 0<x<∞
Find the mean and variance of X
The hint says, compute E(X) directly and then compute E(X2) by comparing that integral with the integral representing the variance of a variable that is N (0, 1)
Find the mean and variance of X
The hint says, compute E(X) directly and then compute E(X2) by comparing that integral with the integral representing the variance of a variable that is N (0, 1)
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