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Find the standard deviation of first ‘ten’ natural numbers.

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The variable are 1,2, 3,…,9,10

n = 10

∴ Standard deviation,

\(σ=\sqrt\frac{\sum_{i=1}^{10} x_i^2}{10}\)-\((\frac{\sum_{i=1}^{10} x_i}{10})^2\)




\(\frac{1}{2}\sqrt {154-121}\)

\(\frac{1}{2}\sqrt {33}\)

= 2.83.

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