Question

A box contains 2 red 3 white and 4 green balls. three balls are drawn in succession with replacement

Answer 1

The overall probability is the product of the three events. The first event is 4/9 (4 blue balls/9 total balls), the second is 3/8 and the third is 2/7:

4/9 * 3/8 * 2/7 = 1/21

Answer 2

3/7 is may be a req solution