At a recent graduation at a naval flight school, 18 Marines, 10 members of the Navy, and

Question:

At a recent graduation at a naval flight school, 18 Marines, 10 members of the Navy, and 3 members of the Coast Guard got their wings. Choose 3 pilots at random to feature on a training brochure. Find the probability that there will be
a. 1 of each 0.120
b. 0 members of the Navy 0.296
c. 3 Marines 0.182