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Math Help - General

  1. #1
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    General

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  2. #2
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    Re: General

    What have you tried? Do you know the formula for a binomial coefficient?

    ^nC_r = \frac{n!}{(n-r)!\ r!}
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  3. #3
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    Re: General

    From what formula is it? Can't see it clearly.
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  4. #4
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    Re: General

    nCr=n!/((r!)(n-r!)) with this formula you can try it.

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    Bizworldusa
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  5. #5
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    Re: General

    Thank you for the formula bizworldusa


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  6. #6
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    Re: General

    This formula is the basic formula of probability.It is used if we select some items out of many items.It means we are selecting r items out of n items.
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  7. #7
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    Re: General

    I think it would be like that :

    nCr = n!/{(n-1)! r!}

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