The following distribution gives the daily income of 50 workers of a factory
The following distribution gives the daily income of 50 workers of a factory.
| Daily income (in Rs.) | 100-120 | 120-140 | 140-160 | 160-180 | 180-200 |
| Number of workers | 12 | 14 | 8 | 6 | 10 |
Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive.
Answer
Cumulative frequency distribution table of less than type is:
| Daily income (in Rs.) | Number of workers |
| Less than 120 | 12 |
| Less than 140 | 26 |
| Less than 160 | 34 |
| Less than 180 | 40 |
| Less than 200 | 50 |
Now, plot the points: (120,12), (140, 26), (160,34), (180,40), (200,50).
