Period 1: Data for Vehicle Fuel Efficiency

Group    MPG City     MPG H.     MPG C.      Green G        Av.Fuel
# 1         18.1             26.3            21.1            None            $1180.30  
# 2         17.8             26.5            20               None            $  950.60
# 3         18.3             26               21.7            8.6               $ 951.90
# 4         18                26              20.9             None            $ 946.10
# 5         19.3             26.8           22                None            $1024.10
# 6         14.4             18.9           15                None            $ 618.90
# 7         17.2             24.4           19.9             10                $1377.30
# 8         17.9             24.8           19.7             9.2               $1261.89

                                                                    Total  Vehicles = 234
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