Repeat Problem 2 when the ball selected is replaced in the urn before the next selection. Problem

Question:

Repeat Problem 2 when the ball selected is replaced in the urn before the next selection.
Problem 2
Suppose that 3 balls are chosen without replacement from an urn consisting of 5 white and 8 red balls. Let Xi equal 1 if the ith ball selected is white, and let it equal 0 otherwise. Give the joint probability mass function of
(a) X1, X2;
(b) X1, X2, X3.