What are the class boundaries for the given class limits: 5-9, 10-14, 15-19, 20-24?

Step 1: Solve Question 1a.
Class limits are the given intervals. Class boundaries are calculated by subtracting 0.5 from the lower limit and adding 0.5 to the upper limit for each class, assuming continuous data from discrete integer limits.

Weight (kg) (Class Limits)	Class Boundaries (kg)
5-9	4.5 - 9.5
10-14	9.5 - 14.5
15-19	14.5 - 19.5
20-24	19.5 -