Question

what is the mean of the natural number 1 to 100​

Answer 1

The mean is 50.5

★Sum of first n natural numbers is $\frac{n(n + 1)}{2}$

★Mean = $\frac{sum \: of \:the \: observations}{total \: number \: of \: observations}$

Here, n=100 $∴ \frac{n(n + 1)}{2} = \frac{100 \times 101}{2} = 5050$

Mean = $\frac{5050}{100} = 50.5$

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