Question
An incomplete frequency distribution is given as follows:
Given that median value is 46, determine the missing frequencies using the medians formula.
| Class interval | Frequency |
| 10 - 20 | 12 |
| 20 - 30 | 30 |
| 30 -40 | ? |
| 40 - 50 | 65 |
| 50 - 60 | ? |
| 60 - 70 | 25 |
| 70 - 80 | 18 |
| Total | 229 |
