×

Loading...

C2-4 / (c0-4 + c1-4 + c2-4 + c3-4 + c4-4)=6 / (1+4+6+4+1)=3/8

whiskers (加菲猫)
(#364663@0)
2002-2-10 -04:00
This post has been archived. It cannot be replied.
Page address has been copied. To share, click to copy page address.
Share Online by QR Code

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。

Back To Forum: HOME枫下论坛枫下论坛主坛枫下沙龙谈天说地