A Better Secret Santa, Thanks To Mathematics
Secret Santa is a time-honored tradition in offices around the country. But it's not perfect—you need to stay anonymous, which can be difficult with the name-drawing methods most people use. In the video below, Dr. Hannah Fry explains the problems with those methods, and suggests a better solution.
The Problems With Secret Santa
Dr. Hannah Fry uses derangements to show the issues with traditional name drawing and comes up with a better way.
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from Wall Street Journal