An analysis of monthly  wages paid to workers in two firms A and B, belonging to the same industry, gives the following result
     
(i) Which firm A or B pays larger amount as monthly wages?
(ii) Which firm, A or B, show greater variability in individual wages?

Explanation

Here, Variance for firm A `= 100`

`:.`Standrad deviation for firm A `=10`

`:.`Coefficient of variation for firm A `CV_A=10**100/5253`


Variance for firm B `= 121`

`:.`Standrad deviation for firm A `=11`

`:.`Coefficient of variation for firm A `CV_B=11**100/5253`


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