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Question
The marks scored by 55 students in a test are given below:
| Marks | 0-5 | 5-10 | 10-15 | 15-20 | 20-25 | 25-30 | 30-35 |
| No. of students | 2 | 6 | 13 | 17 | 11 | 4 | 2 |
Prepare a cumulative frequency table:
Solution
| Marks | No. of students | Marks | Cumulative frequency |
| 0-5 | 2 | Less than 5 | 2 |
| 5-10 | 6 | Less than 10 | 8 |
| 10-15 | 13 | Less than 15 | 21 |
| 15-20 | 17 | Less than 20 | 38 |
| 20-25 | 11 | Less than 25 | 49 |
| 25-30 | 4 | Less than 30 | 53 |
| 30-35 | 2 | Less than 35 | 55 |
| N = 55 |
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