Question
An experiment consists of recording boy-girl composition of families with 2 children. What is the sample space if we are interested in knowing whether it is a boy or girl in the order of their births?
Solution
There are 2 members in the family. They are to be boy(s), girl(s).
Sample space, if we wish to know whether it is boy(s) or girl(s) in the order of their births is:
S = {BB, BG, GB, GG}