Let M denote the median of the following frequency distribution
| Class | 0 - 4 | 4 - 8 | 8 - 12 | 12 - 16 | 16 - 20 |
| Frequency | 3 | 9 | 10 | 8 | 6 |
Then 20 M is equal to [2024]
416
52
208
104
(3)
| Class | Frequency | Cumulative Frequency |
| 0 - 4 | 3 | 3 |
| 4 - 8 | 9 | 12 |
| 8 - 12 | 10 | 22 |
| 12 - 16 | 8 | 30 |
| 16 - 20 | 6 | 36 |
| 36 |
Where,
Now,
