Identify Highest/Lowest Numbers: Identify the highest and lowest numbers in the data set.Data set: −1, −7, 0, 8, 6, −1, 8, 6, 2The highest number is 8.The lowest number is −7.
Calculate Range: Calculate the range by subtracting the lowest number from the highest number.Range = Highest number - Lowest numberRange = 8−(–7)Range = 8+7Range = 15