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

To find the range, we need to subtract the smallest value from the largest value.

For week 1, the smallest value is 5 and the largest value is 15. So the range for week 1 is:

15 - 5 = 10

For week 2, the smallest value is 7 and the largest value is 18. So the range for week 2 is:

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.

To find the range of the number of push-ups people did each week, we need to determine the difference between the highest and lowest values for each week.

Week 1: 5, 8, 10, 11, 6, 8, 9, 15, 5, 8

The highest value in week 1 is 15, and the lowest value is 5.
Range for week 1 = 15 - 5 = 10

Week 2: 7, 9, 11, 12, 8, 10, 11, 18, 9, 10

The highest value in week 2 is 18, and the lowest value is 7.
Range for week 2 = 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.