We did not study the Bernoulli distribution in any detail in Section 3, because it can be looked upon as a binomial distribution with n = 1. Show that for the Bernoulli distribution, μ'r = θ for r = 1, 2, 3, ..., by
(b) letting n = 1 in the moment-generating function of the binomial distribution and examining its Maclaurin's series.