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Summary: The range of a set of data is the difference between the highest and lowest values in the set. To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
This last measurement is the determination of the length of the interval of all numbers in the data set. This calculation can be made for any set of real numbers, including temperatures. The range is a fairly easy calculation to make, and calculating it can tell you a lot about the set of numbers in question.dentify the lowest number in the data set, as well as the highest number. Subtract the lowest number in the set from the highest number. The resulting value is the range of the set of temperature values.