我有两个孩子，有一个是星期二出生的男孩，问：我有两个男孩的概率是多少？

I have two children, one of whom is a son born on a Tuesday. What is the probability that I have two boys?

youdao

星期一，星期二，星期三出生，我是。

Monday, Tuesday, Wednesday born I was.

youdao

星期一，星期二，星期三出生，我是星期四的孩子。

Monday, Tuesday, Wednesday born I was Thursday's Child.

youdao

星期一，星期二，星期三出生，我是星期四的孩子。

Monday, Tuesday, Wednesday born I was Thursday's Child.

youdao