Probability problemSuppose that it is equally likely for a pregnancy to deliver a baby boy as it is to deliver a baby girl. Suppose that for a large society of people, every family continues to have children until they have a boy, then they stop having children. After 1,000 generations of families, what is the ratio of males to females?
:)
probability不变。。
因为总是一男一女生小孩。。
这样只会导致男女鄙视失调罢了。。
这样只会导致男女鄙视失调罢了。。