Question

if the mean= 76 , variance =110 then what is coefficient of variation ?​

Answer 1

Given :

Mean of a data is 76 and variance is 110

To Find :

Coefficient of variation

Solution :

•Variance = (standard deviation)²

SD² = 110

SD = 10.49

where SD is standard deviation

•Mean of data is average among the given data

•Variance measures the average that how each observation differ from each observation .

•coefficient of variation is the ratio of standard deviation to the mean .

•Coefficient of variation = SD/mean

Coefficient of variation = 10.49/76

Coefficient of variation = 0.1380

•Hence , Coefficient of variation is 0.1380