For the Binomial distribution show (a) Xn x0 x j n,p 1. Hint:
Question:
For the Binomial distribution show
(a)
Xn xÆ0
¼
¡
x j n,p
¢
Æ 1.
Hint: Use the Binomial Theorem.
(b) E[X] Æ np.
(c) var[X] Æ np(1¡p).
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