Identify Smallest and Largest Numbers: Step 1: Identify the smallest and largest numbers in the data set.Data set: 4,1,7,−2,−1,−9,5,4,9,1.Smallest number: −9Largest number: 9
Calculate Range: Step 2: Calculate the range using the formula: Range = Largest number - Smallest number. Range = 9−(–9)=9+9=18