Use the fact that ez = 1 + z + z2 2! + z3 3! + z4 4! + to expand the moment-generating
Chapter 4, Problem 4.166(choose chapter or problem)
Use the fact that ez = 1 + z + z2 2! + z3 3! + z4 4! + to expand the moment-generating function of Example 4.16 into a series to find 1, 2, 3, and 4 for the normal random variable.
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