This website requires Javascript to function properly. Please go to the setting of your web browser and enable Javascript for this website.
×
Loading...
Close
Home
Share
答案是3/8 这样算：生两个男孩的可能总共有C2-4=6中可能。生四个孩子，不考虑性别的话，总共有2×2×2×2＝16种可能，所以，生俩男俩女的概率是6/16＝3/8.
npu
(喝点酒就醉)
(#364689@0)
Last Updated: 2002-2-10
This post has been archived. It cannot be replied.
Share
Report
Replies, comments and Discussions:
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。
枫下论坛主坛
/
枫下沙龙
/
谈天说地