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 |