12 marbles are in a bag, 8 are red and 4 are green. 1. If you reach into the bag and grab pull out three marbles, what is the probability there are 2 green and one red? 2. Suppose you pulled out three marbles, but one at a time replacing the marble each time. Now what is the answer to part a? Solution 1. (1/4)*(1/3)*(1/8)=1/96 2.(2/4)*(1/8)=1/16.