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Math Help - Counting & Probability help

  1. #1
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    Counting & Probability help

    Not sure how to do number 1

    #1)In how many different ways can 10 different balls be distributed to 7 identical tubs, if some tubs can be left empty?


    #2)In how many different ways can 14 identical balls be distributed to 7 identical boxes, if no box can be left empty?

    For number 2 I got C(10 + 7 - 1 , 10)

    Any help would be greatly appreciated
    Last edited by nilla_guerilla; April 13th 2008 at 03:37 PM. Reason: confusion/two different questions
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  2. #2
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    Quote Originally Posted by nilla_guerilla View Post
    In how many different ways can 10 different balls be distributed to 7 identical tubs, if some tubs can be left empty?
    Not Sure Where to approach this one

    In how many different ways can 14 identical balls be distributed to 7 identical boxes, if no box can be left empty? This one I got C(10 + 7 - 1 , 10)
    Please review this post. Did you write what you meant?
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  3. #3
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    yes, sorry for the confusion they are two unrelated questions
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