Mathematics
The daily wages of 160 workers in a factory are given below :
| Wages (in ₹) | No. of workers |
|---|---|
| 50-60 | 12 |
| 60-70 | 20 |
| 70-80 | 30 |
| 80-90 | 38 |
| 90-100 | 24 |
| 100-110 | 16 |
| 110-120 | 12 |
| 120-130 | 8 |
Draw a cumulative frequency curve and estimate :
(i) median wage
(ii) inter-quartile range
(iii) percentage of workers who earn more than ₹ 95 per day.
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