the box plots show the average gas mileage in miles per gallon , of the cars sold at a dealership in june and december. which inference can be made about the cars? 2 box plots. The number line goes from 14 to 34. For cars sold in June, the whiskers range from 21 to 33, and the box ranges from 22 to 29. A line divides the box at 24. For Cars sold in December, the whiskers range from 14 to 26, and the box ranges from 18 to 21. A line divides the box at 19. Gas Mileage of Cars Sold in December