Daily income (in Rs) | 100-120 | 120-140 | 140-160 | 160-180 | 180-200 |
Number of workers | 12 | 14 | 8 | 6 | 10 |
Daily income (in Rs.) | No. of workers (f) | Cumulative frequency (c.f) |
Less than 120 | 12 | 12 |
Less than 140 | 14 | 26 |
Less than 160 | 8 | 34 |
Less than 180 | 6 | 40 |
Less than 200 | 10 | 50 |