Question: 4. Suppose that for a random variable X, E(Xn) = 2n, n = 1, 2, 3, . . .. Calculate the moment-generating function and the

4. Suppose that for a random variable X, E(Xn) = 2n, n = 1, 2, 3, . . .. Calculate the moment-generating function and the probability mass function of X.

Hint: Note that = e, < x < . 0

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