Eight car dealerships reported the number of cars they sold last month. car dealership number of cars sold gmc 84 chevrolet 81 nissan 92 toyota 92 ford 95 honda 94 hyundai 80 acura 72 what is the upper and lower quartile of this set of data? lower quartile: 80.5 upper quartile: 93 lower quartile: 88 upper quartile: 93 lower quartile: 80.5 upper quartile: 88 lower quartile: 72 upper quartile: 95 answer is a