the mean of first n odd numbers is n square by 81 then n is equal to
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n=81
the sum of first n odd integers (positive)=n^2
and mean = sum of the values /number of values
here it is n^2/81
so 81 represents the number of values (odd numbers here)
the sum of first n odd integers (positive)=n^2
and mean = sum of the values /number of values
here it is n^2/81
so 81 represents the number of values (odd numbers here)
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