Anthonyk2013
Junior Member
- Joined
- Sep 15, 2013
- Messages
- 132
| Dia x (mm) | 8.82- 8.86 | 8.87-8.91 | 8.92-8.96 | 8.97-9.01 | 9.02-9.06 | 9.07-9.11 | 9.12-9.16 | 9.17-9.21 |
| Frequency f | 1 | 8 | 16 | 18 | 15 | 10 | 5 | 2 |
(a) Foreach class calculate (i) the central value, (ii)the relative frequency
| Central value | F | rf |
| 8.84 | 1 | |
| 8.89 | 8 | |
| 8.94 | 16 | |
| 8.99 | 18 | |
| 9.04 | 15 | |
| 9.09 | 10 | |
| 9.14 | 5 | |
| 9.19 | 2 |
Are my central values right? How doI calculate relative frequency?