Question

find the class boundaries.
class limits\tclass boundaries
8 - 10
11 - 13
14 - 16
17 - 19
20 - 22
23 - 25

Explanation:

Step1: Calculate gap between classes

11 - 10 = 1

Step2: Determine boundary adjustment

1 / 2 = 0.5

Step3: Compute boundaries for each class

Lower boundary = Lower limit - 0.5; Upper boundary = Upper limit + 0.5

Answer:

7.5 - 10.5
10.5 - 13.5
13.5 - 16.5
16.5 - 19.5
19.5 - 22.5
22.5 - 25.5