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प्रश्न
Prepare a frequency distribution table for the following, using class intervals 0 - 9, 10 - 19, ...
23, 38, 40, 57, 74, 31, 47, 52, 56, 59, 44, 56, 18, 46, 63, 57, 79, 39, 39, 20, 39, 45, 49, 60, 32, 47, 19, 69, 20, 5, 8, 53, 28, 48, 73, 77, 63, 52, 65, 11
बेरीज
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उत्तर
| Class Interval | Tally Marks | Frequency |
| 0 - 9 | `bb|bb|` | 2 |
| 10 - 19 | `bb|bb|bb|` | 3 |
| 20 - 29 | `bb|bb|bb|bb|` | 4 |
| 30 - 39 | `cancel(bb|bb|bb|bb|) bb|` | 6 |
| 40 - 49 | `cancel(bb|bb|bb|bb|) bb|bb|bb|` | 8 |
| 50 - 59 | `cancel(bb|bb|bb|bb|) bb|bb|bb|` | 8 |
| 60 - 69 | `cancel(bb|bb|bb|bb|)` | 5 |
| 70 - 79 | `bb|bb|bb|bb|` | 4 |
| Total | 40 |
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