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Thread: word combinations problem

  1. October 11th 2008, 12:49 PM #1
    biggestbernard1
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    word combinations problem

    How many ways can 4 people be chosen from a group of 9? Tell whether the situation is a permutation of combination. Then solve.
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  2. October 11th 2008, 01:08 PM #2
    Jhevon
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    Quote Originally Posted by biggestbernard1 View Post
    How many ways can 4 people be chosen from a group of 9? Tell whether the situation is a permutation of combination. Then solve.
    this is just "9 choose 4", or in other words, {9 \choose 4} = _9C_4
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