In Exercise 16, the regression model Combined MPG = 33.46 - 3.23 Displacement relates cars’ engine size to their fuel economy (Combined mpg). Explain what the slope means.

Data From Exercise 16

In Chapter 6, Exercise 41 we examined the relationship between the fuel economy (CombinedMPG) and Displacement (in liters) for 1211 models of cars. (Data in Fuel Economy 2016) Further analysis produces the regression model Displacement. If the car you are thinking of buying has a 4 liter engine, what does this model suggest your gas mileage would be?

Transcribed Image Text:

CombinedMPG 33.46 3.23.