Write a brief note on coefficient of variation.

1.	Write a brief note on coefficient of variation.
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 × 100 = \(\frac{s}{x¯}\) × 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.

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 × 100
= \(\frac{s}{x¯}\) × 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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Write a brief note on coefficient of variation.

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