Suppose each child born is equal likely to be a boy or a girl. Consider only families with exactly three children. Let BBG indicates a family where the first and third children are girls and the middle child is a boy, and so forth. a) List all of the elements in the sample space whose outcomes possible of the three children. b) What is the probability that an arbitrary family with three children has exactly one boy? c) What is the probability that an arbitrary family with three children has at least two girls