### Home > CCA > Chapter Ch4 > Lesson 4.2.3 > Problem 4-65

4-65.

A consumer magazine* *collected the following data for the fuel efficiency of cars (miles per gallon) compared to weight (thousands of pounds).

is the weight (

and

*is the fuel efficiency (mpg).*

Describe the association between fuel efficiency and weight.

Moderately strong negative linear association with no apparent outliers.

Cheetah Motors has come out with a super lightweight sports utility vehicle (SUV) that weighs only

pounds. What does the model predict the fuel efficiency will be? Use the graph to come up with a prediction of the fuel efficiency of the new SUV.