Question

which number can be added to the data so that the range of the data will be 50?

Answer 1

Answer: C

Step-by-step explanation:

First, rearrange the data from least to greatest: 45, 47, 54, 59, 81, 90

• The range = greatest value(max) - smallest value(min).
• The current range = 90 - 45

Substitute in each of the answer choices, subtract the minimum value from the maximum value, and find one that result in 50.

• A. 90 - 44 = 46
• B. 130 - 45 = 85
• C. 90 - 40 = 50
• D. 90 - 6 = 84