The range of {3,7,2,10} is what?

The range of {3,7,2,10} is what?

• A. 8
• B. 7
• C. 3
• D. 6

Answer: (A)

The range tells you how spread out the data is by measuring the distance between the largest and smallest values. In the set {3, 7, 2, 10}, the smallest value is 2 and the largest is 10. Subtracting gives 10 − 2 = 8. So the range is 8, showing how far apart the extremes are. The other numbers don’t reflect this distance, since only the difference between the maximum and minimum values equals 8.

The range tells you how spread out the data is by measuring the distance between the largest and smallest values. In the set {3, 7, 2, 10}, the smallest value is 2 and the largest is 10. Subtracting gives 10 − 2 = 8. So the range is 8, showing how far apart the extremes are. The other numbers don’t reflect this distance, since only the difference between the maximum and minimum values equals 8.