Chapter 4.1, Problem 4.6E

(a)

To determine

To construct a scatterplot that shows the relationship between the city and highway mileage for a minicompact cars using city mileage as the explanatory variable.

Explanation of Solution

The scatterplot that shows the relationship between the city and highway mileage for a minicompact cars using city mileage as the explanatory variable is as follows,

  

The horizontal axis is city mileage and the vertical axis is highway mileage.

(b)

To determine

To construct a scatterplot that shows the relationship between the city and highway mileage for a two -seatercars.

Explanation of Solution

The scatter plot that shows the relationship between the city and highway mileage for a two -seater cars is as follows:

  

(c)

To determine

To describe the scatterplots for both and is there any relationship similar to the both types of the cars and what is the most important difference in the both types.

Explanation of Solution

By looking at the scatterplot of the both types of cars we can see that the no relationship in the both. And the most important difference is that the graph of the two-seater cars is linear while the graph of minicompact cars has a curve in the data.