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3/8, 我的算法是转化成4位二进制数中出现二0二1的概率,不知道是不是很笨

zhihaoxx (Dilbert*XP)
(#364590@0)
2002-2-10 -04:00
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Back To Topic: GMAT题,一对夫妇生了4个小孩,问2男2女的概率是多少?我的答案是1/5,但友人说是3/8。

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