Ten randomly selected people were asked to join a fitness group. Over the next two weeks, they were tested on how many push-ups they could do. The data shows the number of push-ups they did over the two weeks. What is the range of the number of push-ups people did each week?

Week 1: 5, 8, 10, 11, 6, 8, 9, 15, 5, 8
Week 2: 7, 9, 11, 12, 8, 10, 11, 18, 9, 10 (1 point)

To find the range, subtract the smallest value from the largest value in each week's set of data:

For week 1:
Largest value = 15
Smallest value = 5
Range = 15 - 5 = 10

For week 2:
Largest value = 18
Smallest value = 7
Range = 18 - 7 = 11

Therefore, the range of the number of push-ups people did each week is 10 for week 1 and 11 for week 2.