Question

An experiment consists of 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?

 

Answer 1

 When the order of the birth of a girl or a boy is considered, the sample space is given by
     S = {(G₁, G₂), (G₁, B₂), (B₁ ,G₂), (B₁, B₂)}