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How extraordinary is Ye Shiwen?

There was controversy this week after Ye Shiwen, a young Chinese swimmer, won the 400 metre individual medley in fine style. A US swimming coach called the performance implying...

There was controversy this week after Ye Shiwen, a young Chinese swimmer, won the 400 metre individual medley in fine style. A US swimming coach called the performance "disturbing", implying that she may have cheated. More or Less investigates the numbers and finds there's no statistical smoking gun.

28 minutes

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  • More or Less

    Tim Harford explains the numbers and statistics in the news and in life.