| Class interval | Frequency |
| \(30 - 45\) | 21 |
| \(45 - 60\) | 25 |
| \(60 - 75\) | 14 |
| \(75 - 90\) | 11 |
| \(90 - 105\) | 18 |
Find the difference between the upper limit of the median class and the lower limit of the modal class.
Answer:
The difference between the upper limit of the median class and the lower limit of the modal class is