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Friday, September 2, 2011

Statistical Puzzle

Toss a fair coin. Is the average number of coin tosses required to get a HTH pattern greater than, less than, or the same as, the number of tosses required to get a HTT pattern?

. answer below
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answer: greater than (on ave. taking 10 tosses to get HTH, and only 8 to get HTT)

See Peter Donnelly's TED talk if you need an explanation: http://bit.ly/qYlgHi

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