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- UID
- 597451
- 帖子
- 2
- 主题
- 1
- 注册时间
- 2014-1-14
- 最后登录
- 2014-4-14
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the probability that each stock in A stock market outperforms the Shanghai composite index is 30%. For three stocks, what is the probability that at least two stocks outperformed the Shanghai Composite index?
弱弱问下这题怎么做啊？ |
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发表于 2014-4-14 07:18
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