In Problem 2, suppose that the white balls are numbered, and let Yi equal 1 if the

Question:

In Problem 2, suppose that the white balls are numbered, and let Yi equal 1 if the ith white ball is selected and 0 otherwise. Find the joint probability mass function of
(a) Y1, Y2;
(b) Y1, Y2, Y3.
Problem 2
Suppose that 3 balls are chosen without replacement from an urn consisting of 5 white and 8 red balls.