Karen is making pasta. She can choose from two different sauces: white sauce or red sauce. She can choose between three types of meat: sausage, ham, or meatballs. Finally, she can choose between three types of cheese: swiss, cheddar, or parmesan

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297