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Friday, December 30, 2011

Friday Puzzle

For the probability buffs out there, here's a tricky problem from another site:

What is the probability that in a group of 31 people, NONE of them have birthdays in February or August? (assume equal probability of birthday for all days throughout the year)
Answer below.....
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the answer (I presume correct), 0.41%, is computed here:
http://tinyurl.com/7h3nh23

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