If 1 in 5 people have blue eyes, and we select 20 people at random, what formula can we use to calculate the probability that exactly 3 people in our sample have blue eyes? 0 (230)(5)3(4)\" O 3 (20) (0.2)20(0.8)"17 O (230) (0.2)3(0.8)17 O (230) (0.2)17(0.8)3