2. 外语
  3. The odds in favor of winning a game can be found by computing the ratio of the probability of winning to the probability of not

The odds in favor of winning a game can be found by computing the ratio of the probability of winning to the probability of not

admin2009-05-19  77
问题 The odds in favor of winning a game can be found by computing the ratio of the probability of winning to the probability of not winning. If the probability that Pat will win a game is 4/9 , what are the odds that Pat will win the game?
选项 A、4 to 5
B、4 to 9
C、5 to 4
D、5 to 9
E、9 to 5
答案A
解析 赢得一场比赛的可能性可以通过计算获胜的概率与不获胜概率的比值得到，若Pad赢得比赛的概率为4/9，那么不赢得比赛的可能性是多大?
解：本题的正确答案是(A)。Pad赢得比赛的概率为4/9，那么他不赢得比赛的概率为5/9，由题意可得：Odds=P(win)：P(not win)=4/9 ：5/9 = 4：5
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