Range describes the spread of a data set by finding the difference between its greatest value and its least value. The learner identifies these extremes in a list, table, or line plot and subtracts the least from the greatest, understanding that range is not the number of data values; more advanced measures of variability and formal statistical analysis are not included.
The range tells how spread out a set of data is.
To find the range:
Example: Find the range of the data set:
The range is .
Remember, the range is the difference between the greatest and least values. It is not the number of values in the data set.
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