16. In Problem 15, let team number 1 be the team with the worst record, let team number 2 be the team with the second worst record, and so on. Let Y, denote the team that gets draft pick number i. Thus Y₁ = 3 if the first ball chosen belongs to team number 3. Find the probability mass function of

(a) Y1,

(b) Y2, and

(c) Y3.