[問題] 機率跟期望值的問題
看板Statistics作者lowchristie (OK Computer.......)時間18年前 (2007/10/24 05:01)推噓1(1推 0噓 0→)留言1則, 1人參與討論串1/2 (看更多)
Suppose two teams are playing a series of games, each of which is
independently won by team A with probability p and by team B with
probability 1-p. The winner of the series is the first team to win
i games.
1).If i= 4,find the probability that a total of 7 games are played.
Also show that this probability is maximized when p=1/2.
2).Find the expected number of games that are played when
(a).i=2 , (b).i=3
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10/24 19:46, , 1F
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