Question

If the mean and standard deviation of a data are 8 and 2 respectively then the coefficient of variation is​

Answer 1

Answer:

We know that variance is the square of standard deviation so the answer should be 2^2=4

Answer 2

The coefficient of variation is​ 400

Given:

If the mean and standard deviation of a data are 8 and 2 respectively  

To find:

The coefficient of variation

Solution:

Formula used:

The formula for the coefficient of variation is given by  

                C.V = σ/μ × 100  

Where σ = standard deviation and μ = mean of the data  

Given that

Mean of the data = 8

The standard deviation of the data = 2

By given formula

Coefficient of variation = [ 8/2 ] × 100

= [ 4 ] × 100

= 400  

Therefore,

The coefficient of variation is​ 400

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