Use the following data about a shark's daily swim to determine its average speed,
During 3 hours of the morning, the shark swam 50km.
During the middle of the day, it took the shark 4 hours to swim 75km
At night, the shark swam 30km during 3 hours
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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