Question: Problem 8 (a) Suppose X is a Poisson random variable with parameter 1 = 5. Find EX(X -1)(X - 2) ]. 109 . Find (b)

Problem 8 (a) Suppose X is a Poisson random variable with parameter 1 = 5. Find EX(X -1)(X - 2) ]. 109 . Find (b) Suppose X1, X2, X3 are independent Poisson variables each with expectation 0.9. Find P(X1 + X2 + X3

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