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London 2012 has vowed to be the cleanest Olympics ever, with more than 6,000 tests on athletes for performance enhancing drugs. But if an athlete fails a drug test, how likely is it that they really are cheating? John Haigh does the maths in our article, aimed at general readers and older students.
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The use of performance enhancing drugs is the dark side of sport, and there are stringent measures in place to try to screen athletes. But what's the likelihood that an athlete who fails a drug test has actually taken the banned drug? What do you think is the fairest way to construct a drug-testing regime? This activity, aimed at A-level students, explores some of the mathematics involved.
