Use the given frequency distribution to find the Class width, Class midpoints, Class boundaries
Question 15.
Use the given frequency distribution to find the
| Temperature(°F) | Frequency |
| 45-48 | 1 |
| 49-52 | 3 |
| 53-56 | 5 |
| 57-60 | 11 |
| 61-64 | 7 |
| 65-68 | 7 |
| 69-72 | 1 |
- Class width
- Class midpoints
- Class boundaries
Answer – Class Width = (48-45) = 3
Class midpoints = (48+45)/2=93/2=46.5
Class boundaries =
| 44.5 – 48.5 |
| 48.5 – 52.5 |
| 52.5 – 56.5 |
| 56.5 – 60.5 |
| 60.5 – 64.5 |
| 64.5 – 68.5 |
| 68.5 – 72.5 |