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प्रश्न
The following data represents the weekly wages (in ₹) of 15 workers in a factory:
900, 850, 800, 850, 800, 750, 950, 900, 950, 800, 750, 900, 750, 800 and 850.
Prepare a frequency distribution table. Now find,
(i) how many workers are getting less than ₹850 per week?
(ii) how many workers are getting more than ₹800 per week?
बेरीज
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उत्तर
The required frequency table will be as shown below:
| Weekly wages in (₹) | Tally-marks | Frequency |
| 750 | ||| | 3 |
| 800 | |||| | 4 |
| 850 | ||| | 3 |
| 900 | ||| | 3 |
| 950 | || | 2 |
| Total no.of workers | 15 |
(i) Workers getting less than ₹850 per week
No. of workers getting ₹750 = 3 workers
No. of workers getting ₹800 = 4 works
∴ Workers getting less than ₹ 850 = 4 + 3 = 7 workers
(ii) Workers are getting more than ₹800 per week
No. of workers getting ₹850 = 3
No. of workers getting ₹900 = 3
No. of workers getting ₹950 = 2
∴ Workers getting more than ₹800 = 3 + 3 + 2 = 8 workers
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