The range of the sample is 1.55.
To find the range, we first need to find the greatest and least values in the sample. The greatest value is 85.94 and the least value is 84.39. We then subtract the least value from the greatest value to find the range.
Range = Greatest Value - Least Value
Range = 85.94 - 84.39
Range = 1.55
Another way to find the range is to use the following formula:
Range = Maximum - Minimum
This formula gives us the same answer as the previous method.
Range = Maximum - Minimum
Range = 85.94 - 84.39
Range = 1.55
Therefore, the range of the given sample is 1.55.