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Math Help - [SOLVED] Probability Models

  1. #1
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    [SOLVED] Probability Models

    Please see below.

    Can also just say to whoever is helping me out, you are pretty much awesome, and I will try and help others out as much as I can on this forum!
    Attached Thumbnails Attached Thumbnails [SOLVED] Probability Models-question.bmp  
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  2. #2
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    Found the answer to this by the way, here it is if your intersted

    Discrete distribution taking only non-negative integer values

    When a random variable takes only values in {0,1,2,3,...} we can use the following formula for computing its expectation:
    Proof:
    interchanging the order of summation, we have
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