Suppose you randomly select a family with four children. Assume that births

Suppose you randomly select a family with four children. Assume that births of boys and girls are equally likely.

a. How many birth orders are possible? List them in a probability distribution table.
b. What is the probability that the family has four children of the same gender?
c. What is the probability that the family has a boy, a girl, a boy, and a girl, in that order?
d. What is the probability that the family has two girls and two boys in any order?