If a data set has a maximum value of 120 and a minimum value of 20, what is the range?

If a data set has a maximum value of 120 and a minimum value of 20, what is the range?

• A. 100
• B. 120
• C. 110
• D. 90

Answer: (A)

The range is the difference between the largest and smallest values in a data set. With a maximum of 120 and a minimum of 20, subtract to get 120 − 20 = 100. So the range is 100. The other numbers would not reflect the spread from the lowest to the highest value, which is what the range measures.

The range is the difference between the largest and smallest values in a data set. With a maximum of 120 and a minimum of 20, subtract to get 120 − 20 = 100. So the range is 100. The other numbers would not reflect the spread from the lowest to the highest value, which is what the range measures.