Let X ~ B(15, 0.2). E(X^2) = Select one: a. 9 b. 11.4 c. 5.4 d. 0
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2. This means that the possible values of X are 0, 1, 2, ..., 15, and the probability of getting each value can be calculated using the binomial probability formula: P(X=k) = (15 choose k) * 0.2^k * 0.8^(15-k) where (15 choose k) is the number of ways to choose k Show more…
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