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Thread: 9 coins 9 heads probability

  1. April 17th 2010, 04:43 PM #1
    dwsmith
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    9 coins 9 heads probability

    p[of tossing nine coins and getting all heads] = nCr*p^n*q^{n-r}=9C9*.5^9=.001953125

    Is this correct?
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  2. April 17th 2010, 04:48 PM #2
    TKHunny
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    If they are fair coins, you have it.
    Last edited by TKHunny; April 17th 2010 at 05:30 PM.
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