An analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry the following result: Firm A Firm B Number of workers 500 600 Average monthly wage Rs. 1860 Rs. 1750 Variance of distribution of wages 81 100 The average of monthly wages and variance of distribution of wages of all the workers in the firms A and B taken together are [NDA II 2018]

Correct Answer is : None of above

NDA Math Statistics

Question : 28 of 100

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An analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry the following result:

	Firm A	Firm B
Number of workers	500	600
Average monthly wage	Rs. 1860	Rs. 1750
Variance of distribution of wages	81	100

The average of monthly wages and variance of distribution of wages of all the workers in the firms A and B taken together are

[NDA II 2018]

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