Chapter 8, Problem 18E

To determine

To write a sentence in context summarizing what the $R^2$ says about this regression.

Explanation of Solution

In the question it is given that people who responded to a discovery channel poll named the ten best roller coasters in the United States. In previous exercise it shows the length of the initial drop and the duration of the ride. A regression to predict duration from drop has $R^2=12.4\%$ .Thus, it says about this regression is that a linear model accounts for $71.4\%$ of the variables in home price. Thus, it can say about this regression is that the linear model predicts the actual duration of the ride correctly $12.4\%$ of the time.