savant agreed with the teacher, saying the chances were only 1 out of 3 that the woman had two boys, but 1 out of 2 the man had two boys. readers argued for 1 out of 2 in both cases, prompting follow-ups. finally she began a survey, asking female readers with exactly two children, at least one of them male, to give the sex of both children. of the 17,946 women who responded, 35.9%, about 1 in 3, had two boys.