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Re:冠军至少做N题这个概率怎么求?

Posted by nhzp at 2004-12-28 12:00:19 on Problem 2151
In Reply To:冠军至少做N题这个概率怎么求? Posted by:hacky at 2004-12-26 17:11:37
> 是不是求出冠军至少做N题的概率, 再乘上每队至少做一题的概率, 就是最后结果?

不是的,

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