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ZetaX9

For this problem assume that there are 365 possible birthdays, and that each is equally likely. a. What is the probability that there are two people in this room with the same birthday? b. What is the smallest number of people that can be in a room so that the probability of two having the same birthday is greater than 50%?

  • 2 years ago
  • 2 years ago

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  1. Sbdenney
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    my teacher did this once but I forgot

    • 2 years ago
  2. Zarkon
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    Classic: http://en.wikipedia.org/wiki/Birthday_problem

    • 2 years ago
  3. ZetaX9
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    Hey, first off, thanks for the link. I got b), but I don't know how to do a). Can you help me out? Thanks.

    • 2 years ago
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spraguer (Moderator)
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