Identify data set and values: Identify the data set and the highest and lowest values.Data set: −1,−2,0,−5,−4,−4,−7,−7The highest value in the set is 0.The lowest value in the set is −7.
Calculate range: Calculate the range using the formula: Range=Highest Value−Lowest Value.Range=0−(–7)=0+7=7