Suppose that 8% of all bicycle racers use steroids, that a
Chapter 6, Problem 6.3.5(choose chapter or problem)
Suppose that 8% of all bicycle racers use steroids, that a bicyclist who uses steroids tests positive for steroids 96% of the time, and that a bicyclist who does not use steroids tests positive for steroids 9% of the time. What is the probability that a randomly selected bicyclist who tests positive for steroids actually uses steroids?
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