For a frequency distribution, standard deviation is computed by

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13.Statistics

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For a frequency distribution, standard deviation is computed by

A$\sigma = \frac{{\sum f(x - \bar x)}}{{\sum f}}$

B$\sigma = \frac{{\sqrt {\sum f{{(x - \bar x)}^2}} }}{{\sum f}}$

C$\sigma = \sqrt {\frac{{\sum f{{(x - \bar x)}^2}}}{{\sum f}}} $

D$\sigma = \sqrt {\frac{{\sum f(x - \bar x)}}{{\sum f}}} $

Solution

(c)It is obvious.

Standard 11

Mathematics

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