You did not get the question.两个scenarios没有都出现

You did not get the question.两个scenarios没有都出现

所有跟贴·加跟贴·新语丝读书论坛

送交者: HunHunSheng 于 2008-07-31, 23:33:18:

回答: 两次出现（一次见面，一次电话）的都是男孩。由 Amsel 于 2008-07-31, 23:24:33:

Or the first scenario happens to your friend A
and secnd canario happens to your friend B. B and A
are different guy.

What is the probability your friend A has two boys?
What is the probability your friend B has two boys?

你没有把题目看对你自己把原来的两种假设和在一起创造了第三种假设 (无内容) - HunHunSheng (0 bytes) 2008-08-01, 07:39:13 (246992)
我不知道你们在哪里吵。这道题你、008和JFF都做错了？不可思议。 (无内容) - Amsel (0 bytes) 2008-07-31, 23:55:12 (246976)