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March 29, 2017

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If mean of 1, 2, 3, --------- n is 6n/11, then n is

  • Statistics - ,

    The sum of a series of integers (1,2,3.. n)is

    n(n+1)/2

    so the mean is the total/n, hence

    n(n+1)/2n
    =6n/11

    solve for n

    I got n=11

  • Statistics - ,

    Thank you

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