Q. 15.0( 2 Votes )

The following res

Answer :

Mean wages of both the factories are the same, i.e., Rs. 5300.


To compare variation, we need to find out the coefficient of variation (CV).


We know, CV = , where SD is the standard deviation.


The variance of factory A is 100 and the variance of factory B is 81.


Now, SD of factory A =


And, SD of factory B =


Therefore,


The CV of factory A =


The CV of factory B =


Here, the CV of factory A is greater than the CV of factory B.


Hence, factory A has more variation.


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