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
一共有4个孩子, 每个孩子的性别有两种可能, 男,女. 所有可能组合: 2X2X2X2=16. 所以单从分母来说, 5就不对. 你是解排列, 这是组合题, 我猜想
dropoutinmiami
(东北的饺子)
(#364586@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This post has been archived.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