You can put this solution on YOUR website! What are the odds that two people would pick the same seven
books from a list of 150 books to read?
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The 1st person can pick any 7 books.
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There are 150C7 = 2.9411 x 10^11 unique sets of 7 books.
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P(2nd person will pick the same set of 7 books) = 1/(150C7)
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Cheers,
Stan H.
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