Ordering the data from highest to lowest, we get: 9 - (-54) = 9 + 54 = 63; so the range from -54 to 9 is 63.
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The range is 10.
It depends on the context. The most likely context is that of a range for a set of data and a range of 9 means that the biggest minus the smallest = 9
The range is the difference between the bihhest number and the smallest number. In this case 51 - 9 = 42 (The Range).
The range is 9-1 = 8
Median: 8 Mode: 8, 9 Range: 6