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statistics

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Suppose you sample randomly, without replacement, a number between 1 and 999999, all outcomes have the same probability of being selected.What is the probability that the digits of the number selected add up to 23

  • statistics -

    None under 100 will = 23
    995 = 9 + 9 + 5 = 23
    599 = 9 + 9 + 5 = 23
    959 = 9 + 9 + 5 = 23
    869
    779
    788

    Do you have a formula you can use? I don't.

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