Exercise 1 The prevalence of colon cancer in the US is 4%. Calculate the probability of finding at least three persons with this disease in a group of 100 people. Exercise 2 In a recent study, researchers found that the average number of parasites infecting with an intestinal cell was 0.3. Calculate the probability of finding one or more parasites infecting an intestinal cell. Exercise 3 You have a cage with 9 mice: 3 white, 3 brown, and 3 tan. You need two mice for your experiment. What is the probability of getting a first mouse that is tan and a second mice that is white? (Over)