Ques. -11

Level 2

The best statistical measure used for comparing two series is:

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Mean Deviation Range Standard Deviation Coefficient of variation

Sandeep Bhardwaj by Sandeep Bhardwaj , 28, India

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2 solutions

Coefficient of variation eliminates the problem related to units. If two different data have different units, all other methods would required conversion of unit except this one. It is ratio of standard deviation to mean, hence it has no units.

Source: Class XI NCERT; Chapter: Statistics; Topic: Analysis of Frequency Distribution.

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I know this cannot be considered as a solution .

I remember having read somewhere that a distribution having smaller Coefficient of Variation has a value closer to the central value or it's variability is lesser around the central value as compared to a distribution having a higher CV.

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@Sandeep Bhardwaj

Sir , I don't know how to co-relate it to a series . Also what are you referring to by a series ?

A Former Brilliant Member - 6 years, 3 months ago

why standard deviation can not be a answer?

Gaurav Jain - 6 years, 2 months ago

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