11.92 In building a model to study automobile fuel consumption, Biggs and Akcelik (Journal of Transportation Engineering, 1987) began by looking at the relationship between idle fuel consumption and engine capacity. Suppose the data are as shown in table below.

What model do you think best explains the relationship between idle fuel consumption and engine size?

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Idle Fuel Consumption (mL/s) Engine Size (L) 0.18 1.2 0.21 1.2 0.17 1.2 0.31 1.8 0.34 1.8 0.29 1.8 0.42 2.5 0.39 2.5 0.45 2.5 0.52 3.4 0.61 3.4 0.44 3.4 0.62 4.2 0.65 4.2 0.59 4.2