Class | 1-3 | 3-5 | 5-7 | 7-9 |
Frequency | 9 | 22 | 27 | 18 |
Class |
Mid value |
Frequency |
|
1-3 |
2 |
9 |
18 |
3-5 |
4 |
22 |
88 |
5-7 |
6 |
27 |
162 |
7-9 |
8 |
18 |
144 |
|
|
|
|