Identify Smallest & Largest Numbers: Identify the smallest and largest numbers in the data set.Data set: −3, 9, −5, 5, 10, 10, 9The smallest number is −5 and the largest number is 10.
Calculate Range: Calculate the range by subtracting the smallest number from the largest number.Range = Largest number - Smallest numberRange = 10−(–5)Range = 10+5Range = 15
Verify Calculation: Verify the calculation to ensure there are no math errors.Rechecking the subtraction: 10−(–5)=10+5=15The calculation is correct.