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Among 30 jackets, 10 are red, 10 are black and 10 are yellow. When selecting 5 out of these 30 jackets, what is the probability that 3 red jackets, 1 black jackets and 1 yellow jackets are selected?
Give your answer as a fraction.
2000 /23751显示答案
· 相关考点
6.4.1 古典概率
6.4.1 古典概率
以上解析由 考满分老师提供。
