Question: Let the random variable X have the pmf (x + 1) 9 f(x) = x = -1,0, 1. Let the random variable Y have

Let the random variable X have the pmf (x + 1) 9 f(x) = x = -1,0, 1. Let the random variable Y have pmf f(y) = 5(1)", where y = 1,2,3,... Compute E(Y). [HINT: for r < 1 we have 1 yr = r/(1-r).] y=1

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