Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below.
What is the class boundary between the fourth and fifth classes?
class boundary =
| Lengths (mm) | Frequency |
|---|---|
| 40 - 44 | 1 |
| 45 - 49 | 16 |
| 50 - 54 | 71 |
| 55 - 59 | 108 |
| 60 - 64 | 1 |
| 65 - 69 | 18 |
| 70 - 74 | 3 |
What is the class boundary between the fourth and fifth classes?
class boundary =