3.      An analysis of monthly wages paid to workers in two firms A and B, belonging to the same industry, gives the following results:
 

  Firm A

Firm B

No. of wage earners

586

648

Mean of monthly wages

Rs\hspace {1mm} 5253

Rs\hspace {1mm} 5253

Variance of the distribution of wages

100

121

(i) Which firm A or B pays larger amount as monthly wages?

Answers (1)

Given, Mean of monthly wages of firm A = 5253

Number of wage earners = 586

Total amount paid = 586 x 5253 = 30,78,258

Again, Mean of monthly wages of firm B = 5253

Number of wage earners = 648

Total amount paid = 648 x 5253 = 34,03,944

Hence firm B pays larger amount as monthly wages.

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