Using the attached dataset, answer the following questions. Thanks!

1 2 3 4 5 6 7 8 9 10 11 12 13 14 car Ichevrolet chevelle mall buiCk skylark 320 plymouth satellite amc rebel sst ford torino ford galaxie 500 chevrolet impala plymouth fury iii pontiac catal ina amc ambassador dpl dodge challenger se plymouth 'cuda 340 chevrolet monte carlo buick estate wagon (sw 15 toyota corona mark ii plymouth duster 16 17 amc hornet ford maverick 18 datsun p1510 19 mpg 18 15 18 16 17 15 14 14 14 15 15 14 15 14 24 22 18 21 27 price 21092.798 18548.473 19864.206 21070.029 15025.632 15935.595 24527.810 21637.847 18727.598 19620.205 15930.425 22603.035 20248.029 23070.315 19949.164 16214.739 17290.315 14678.910 17631.201