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16 October, 19:54

Possible outcomes of 2 dates selected from 365

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  1. 16 October, 20:11
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    Unique pair of dates ... use "n choose k" formula:

    n! / (k! (n-k) !), n=number of total possible choices, k=number of selections

    365! / (2! (363!))

    66430 unique combinations
  2. 16 October, 20:19
    0
    The first date has 365 possible outcome

    The second date has 364 possible outcome (since one day already selected)

    The total outcome is 365 x 364 = 132,860 outcomes
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