Monthly Archives: December 2015

Secret Santa puzzle

This problem was inspired by a recent /r/dailyprogrammer exercise on Reddit.  It’s admittedly a little late for a holiday-themed puzzle, but then so was the exercise: You and your large extended family participate in a Secret Santa gift exchange, where … Continue reading

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Proofreading as “mark and recapture”

Last week I saw two different articles (at Futility Closet and DataGenetics) about exactly the same topic: suppose that two reviewers each proofread the same document.  The first reviewer finds errors, and the second finds errors, of which are in common, i.e., 8 … Continue reading

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