(Figure: Mileage and Speed by Car Weight) Which statement about the graph is CORRECT? I. The heavier the vehicles, ceteris paribus, the lower the mileage. II. The higher the speed of the vehicle past 50 miles per hour, ceteris paribus, the lower the mileage.
III) Weight and speed have a linear relationship with mileage.
A) I only
B) II only
C) I and II
D) I, II, and III

Question

(Figure: Mileage and Speed by Car Weight) Which statement about the graph is CORRECT?  I. The heavier the vehicles, ceteris paribus, the lower the mileage. II. The higher the speed of the vehicle past 50 miles per hour, ceteris paribus, the lower the mileage.
III) Weight and speed have a linear relationship with mileage.
A) I only 
B) II only 
C) I and II 
D) I, II, and III

Quizplus · Accepted Answer

From the graph, we can see that as the car weight increases, the mileage decreases. This supports statement I. Additionally, the graph shows that as the speed of the car increases over 50 miles per hour, the mileage decreases as well, supporting statement II. However, there is no evidence of a linear relationship between weight and speed with mileage, so statement III is not correct. Therefore, the correct choice is C - I and II are both correct.

(Figure: Mileage and Speed by Car Weight) Which Statement About