Question: Suppose that X is a random variable for which the m.g.f. is as follows: (t) = 1/6(4 + et + et) for < t

Suppose that X is a random variable for which the m.g.f. is as follows:
ψ(t) = 1/6(4 + et + e−t) for −∞ < t < ∞.
Find the probability distribution of X.

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