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
没有男孩和4个男孩的概率:(1/2)**4+(1/2)**4;1个男孩3个女孩和1个女孩3个男孩的概率:4*(1/2)**4+4*(1/2)**4。因此2个男孩和2个女孩的概率是:1-1/8-1/2=3/8
bluelamp
(蓝灯)
(#364584@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This post has been archived.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