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Suppose that X has a Poisson distribution with mean u = 2 and Y has an exponential distribution with mean 6 = 2. If X

Suppose that X has a Poisson distribution with mean u = 2 and Y has an exponential distribution with mean 6 = 2. If X and Y are independent. find the mean and variance of W=4X -2Y. p, = 4,02 = 16 p, = 4,53 = 12 (\"i t p. = 7, 03 = 34 p; = 7, 02 = 33

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