4. Suppose that Y is a Binomial random variable based on n independent Bernoulli trials each with success probability p. What is E(Y^3)? • You may use (i) E(Y) = np, (ii) Var(Y) = np(1 - p) and (iii) E{Y(Y - 1)(Y - 2)} = E(Y^3) - 3E(Y^2) + 2E(Y).
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Step 1: Recall that E(Y) = np and Var(Y) = np(1 - p). Show more…
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