如果你有排列组合的基础的话,应该能看懂我的解法.
由于这里不能编辑公式,详细看图片:
为减少比赛场次,把20个球队分成两组(每组10队)进行比赛,求(1)最强的两队被分在不同组的概率(2)分在相同组内的概率。
为减少比赛场次,把20个球队分成两组(每组10队)进行比赛,求(1)最强的两队被分在不同组的概率(2)分在相同组内的概率。
数学人气:740 ℃时间:2019-10-24 00:03:18
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