Answer :
Using it's concept, it is found that the range of the set of numbers 10, 30, 15, 17, and 18 is of 20.
What is the range of a data-set?
The range of a data-set is given by the difference of the greatest value by the smallest.
In the data-set 10, 30, 15, 17, and 18, we have that:
- The greatest value is 30.
- The smallest value is 10.
Hence the range is given by:
R = 30 - 10 = 20.
More can be learned about the range of a set of numbers at https://brainly.com/question/24732674
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