Two plants A and B of a factory show following results about the number of workers and the wages paid to them.   Plant A Plant B No. of workers 5000 6000 Average monthly wages Rs. 2500 Rs. 2500 Variance of distribution of wages 81 100 In which plant A or B is there greater variability in individual wages?

Answer

The plant B has greater variability in the individual wages.

Explanation

To compare the variation, we have to calculate coefficient of variation



Coefficient of variation(C.V.) `=\frac{\text { Standard Deviation }}{\text { Mean }} \times 100`




Since, Average monthly wages are same (mean are equal), we compare standard deviation of the distribution



Variance in plant `A=81`
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