Write a brief note on coefficient of variation. - Vidyadip

Question

Write a brief note on coefficient of variation.

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Answer

Karl pearson suggested coefficient of variation as an appropriate relative measure of standard deviation.
It is a percentage measure of standard deviation with respect to mean, i.e.,
Coefficient of variation $=$ Coefficient of $SD \times 100 =\frac{s}{x} \times 100$
It is a most useful relative measure for comparing the dispersion of two or more data.
Less the coefficient of variation of the data, less is the dispersion In it and called the data stable. Such data is called more consistant.
More the coefficient of variation of the data, more is the dispersion in it and called the data less stable.

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