The range of the given data set: 15,16,17,18,19,20,21 is 6 in this scenario.
What is Range?
This is defined as the difference between the highest and lowest number in a set of data.
In a set of given data, the highest number is 21 and the lowest is 15
Range = Highest number - Lowest number.
21 - 15 = 6.
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