Definitely 3/8

linmeimei (林妹妹)
Four children has 16 combinations (2^4)

Male:0 Female:1
0000
0001
0010
0011*
0100
0101*
0110*
0111
1000
1001*
1010*
1011
1100*
1101
1110
1111

There are only 6 cases with 2 male and 2 female. Result 6/16=3/8.
(#364577@0)
2002-2-10 -05:00

回到话题: 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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