There are currently 16 teams in the American Football Conference (AFC). Of those teams, 9 have won at least one super bowl and 7 have not. Suppose that 2 teams are selected at random without replacement.
a. Find the probability that both selected teams have won at least 1 super bowl.
b. Find the probability that neither selected team has won at least 1 super bowl.
c. Find the probability that at least one selected team has won at least 1 super bowl.
d. Find the probability that the second team selected has won at least 1 super bowl given that the first team selected has won a super bowl.

e. Find the probability that the first team selected has won at least 1 super bowl given that he second team selected has NOT won at least 1 super bowl.