What are the genders of Wilma Rudolph's children?
There is no simple answer to this question because the genders of children depend on the parents genes and age and so are not independent events. Also, the probabilities of the two genders are not equal. Further, some of the children may be identical twins or triplets. Assuming, however, that the genders are independent, the answer is 0.3872, approx.
Different articles give different numbers of siblings. The most reliable say that Wilma was the 20th out of 22 children, meaning she had 21 siblings. Other articles say there were 19 children in the family and Wilma was 17th, with 18 siblings. So far, there is no listing of exactly how many brothers Wilma Rudolph had.