The box plots below show the average gas mileage, in miles per gallon, of the cars sold at a dealership in June and in December.Gas Mileage of Cars Sold in JuneGas Mileage of Cars Sold in DecemberThe manager used the table below to compare the measures of center and the measures of variability. MedianRangeInterquartile RangeSold in June24 Sold in December19What error did the manager make in the table?