Construct a cumulative frequency distribution of more than type for the following data.
| Class interval | Frequency |
| 30 \(-\) 45 | 4 |
| 45 \(-\) 60 | 5 |
| 60 \(-\) 75 | 17 |
| 75 \(-\) 90 | 5 |
| 90 \(-\) 105 | 20 |
Answer:
| Class interval | Cumulative frequency |
| \(\text{More than}\) \(30\) | |
| \(\text{More than}\) \(45\) | |
| \(\text{More than}\) \(60\) | |
| \(\text{More than}\) \(75\) | |
| \(\text{More than}\) \(90\) |