Statistics: Range

What is the range of the following set of numbers? >$$\{22, \ 6, \ {-9}, \ 18, \ 21, \ {-2}, \ 0\}$$
Incorrect. [[snippet]]
Incorrect. [[snippet]]
Incorrect. [[snippet]]
Incorrect. [[snippet]]
Correct. [[snippet]] Subtract the smallest number from the largest one in the list. >$$22 - (-9) = 22 + 9 = 31$$. Hence, 31 is the range.
4
16
22
31
50

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