Look at these sets of data. Which data set has a different range to the others?
A: 2, 4, 5, 5, 7, 8
B: 0, 5, 3, 6, 1, 4
C: 9, 8, 7, 7, 6, 5
D: 5, -1, 3, 2, 0, 1

To find the range, you subtract the smallest value from the largest value in each set. A: Largest = 8, Smallest = 2. Range = 8 - 2 = 6. B: Largest = 6, Smallest = 0. Range = 6 - 0 = 6. C: Largest = 9, Smallest = 5. Range = 9 - 5 = 4. D: Largest = 5, Smallest = -1. Range = 5 - (-1) = 5 + 1 = 6. The ranges for A, B, and D are all 6. The range for C is 4. Therefore, data set C has a different range.