| Problem: | Cheryl took 7 math tests in one marking period. What is the range of her test scores? |  |
| 89, 73, 84, 91, 87, 77, 94 | ||
| ||
| Solution: | Ordering the test scores from least to greatest, we get: | |
| 73, 77, 84, 87, 89, 91, 94 | ||
| highest - lowest = 94 - 73 = 21 | ||
| ||
| Answer: | The range of these test scores is 21 points. | |
Wednesday, June 13, 2012
Range
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