QQuestion
Draw an ogive on the graph paper after calculating the cumulative frequency (less than type) of the following data:
| Class Interval | Frequency |
| 0 – 10 | 1 |
| 10 – 20 | 5 |
| 20 – 30 | 15 |
| 30 – 40 | 20 |
| 40 – 50 | 15 |
| 50 – 60 | 6 |
| 60 – 70 | 1 |
Exam-ready answer • 04 Mark
✓Answer
| Class Interval | Frequency | CF |
| 0 – 10 | 1 | 1 |
| 10 – 20 | 5 | 6 |
| 20 – 30 | 15 | 21 |
| 30 – 40 | 20 | 41 |
| 40 – 50 | 15 | 56 |
| 50 – 60 | 6 | 62 |
| 60 – 70 | 1 | 63 |

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