The number of miles ron biked are 31, 35, 49, 32, 45, 29, 33, 28, and 49. Determine the range of this data set

To determine the range of this data set, we first need to find the difference between the highest and lowest values.

Highest value: 49
Lowest value: 28

Range = 49 - 28 = 21

Therefore, the range of the data set is 21 miles.