Simplify: 4r3+2 - 6t2r3 + 3rt - 16 -2rt2 + 3rt - 16
4rt2 - 6t2r3 + 3rt - 16
r3t2 - 16
2r3+2 + 3rt - 16

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