How to solve range of a data set

Question

Jina is recording the percentages she earned on each quiz in her math class. Here are her results for the last 7 quizzes.

1. 79
2. 91
3. 76
4. 87
5. 93
6. 79
7. 94

Find the range of the data set.

Answer 1

The range of a set of numbers is the difference between the largest value and the smallest value. In this case, the largest value is 94 and the smallest value is 76. Hence, the range is 94 - 76 = 18.