Consumer Reports once tabulated the list of vehicle weights versus overall gasoline mileage for several different sizes and types of cars: Weight (lbs) Mileage (mpg) 2775 33 2495 27 2405 29 2545 28 2270 34 2560 24 3050 23 3710 24 3085 23 2940 21 2395 26 3325 20 3200 21 3450 19 3515 21 3495 19 4010 19 4205 17 2900 24 2555 28 2790 21 2190 34 Fit a linear data model to the data, plot the data and model. Determine the equation of the data model and the corresponding RMSE and R? value. Based on your results, how well are the data modeled by a linear data model? How might a better data model be obtained?

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