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Question : 28
Total: 100
An analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry the following result:
The average of monthly wages and variance of distribution of wages of all the workers in the firms A and B taken together are
| Firm A | Firm B | |
|---|---|---|
| Number of workers | 500 | 600 |
| Average monthly wage | Rs. 1860 | Rs. 1750 |
| Variance of distribution of wages | 81 | 100 |
[NDA II 2018]
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