Let X be a Poisson random variable with parameter . Find the variance of X. X 2
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Let X be a Poisson random variable with parameter λ. Find the variance of X. X2 = (X2 − X) + X = X(X − 1) + X.
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EX 2 EX 2 X X EXX 1 X EXX 1 ...View the full answer
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