The following table gives daily wages of workers in a certain commercial organization. The mean of this frequency distribution is ₹ 220, then find the missing frequency ‘f’ of this distribution.
Daily wages (In Rupees) |
100-150 |
150-200 |
200-250 |
250-300 |
300-350 |
Number of workers |
31 |
58 |
60 |
f |
27 |