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Old 11-18-2007, 12:25 AM
borisp borisp is offline
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Join Date: Nov 2004
Posts: 201
Default Re: Need help conceptualizing the constant \"e\"

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Here is a cooler problem, imo: show that the expected value of the # of people who get their hat back is 1, independent of n.

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How is this cooler? This is way easier to solve than the original problem, just use <font color="white"> indicator functions </font> &lt;---- answer in white.

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Cooler in that it admits several elegant and simple solutions. To me, easier problems are cooler.
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