# Question

Testing athletes for illegal steroid use is becoming more sophisticated. (For example, see New Designer Steroid Detected A mong Top A thletes , pbs.org/newshour.) Suppose testing Olympic athletes involves three independent laboratories. Each specimen submitted by an athlete is separated into three parts and each part is sent to one of the laboratories. If an athlete is using steroids, each laboratory is 95% likely to detect the presence of the banned substance. How likely is it that the athlete can escape detection?

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