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 5253 | Rs 5253 |
| Variance of the distribution of wages | 100 | 121 |
(i) Which firm A or B pays larger amount as monthly wages?
(ii) Which firm, A or B, shows greater variability in individual wages?