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Range

What Does Range Mean?

In computer programming, range refers to possible variable values or the interval that includes the upper and lower bounds of an array.

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In statistics, range refers to the interval between points of data. A statistic’s strength and meaning correlate with the sample size, whether the range is short or long.

Techopedia Explains Range

Values can occur between the smallest and largest values in a set of observed values or data points. Given a set of values, or data points, the range is determined by subtracting the smallest value from the largest value.

On a typical test, there is a range between 0 and 100. The range of possible test values is the largest value (100) minus the smallest value (0): 100–0=100. Thus, the possible value range for a typical exam is 100.

However, in reality, a teacher may receive test results like the following: 60, 72, 75, 77, 81, 85, 85, 86 and 90. These scores are the observed values. The range is the largest test score (90) minus the smallest test score (60): 90–60=30. Thus, the range of actual values (exam grades) is 30.

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