1) A number that could be removed from this data set that would not change the range is any number from 54 to 92.
2) A number that could be removed from this data set that would change the range is 53 or 97.
The range is the difference between the maximum value and the minimum value in a data set.
The data set includes 53, 54, 63, 63, 68, 68, 68, 74, 82, 85, 85, 88, 89, 92, 92, 97.
The maximum value = 97
The minimum value = 53
The range = 44 (97 - 53)
Thus, if any number from 54 to 92 is removed, the range will remain 44, but if the maximum or minimum value is removed, the range will change.