Question

13. Identify a use of the coefficient of determination as a descriptive measure.

Short answer

The regression equation is used to make predictions on the basis of this measure.

Step-by-step solution

Concept Introduction

A coefficient of determination is an indicator of how useful a regression equation is for creating predictions.

Explanation 

As a measure of the goodness of fit of a model, the coefficient of determination provides information about the reliability of the model.

A regression line's fit to the actual data is measured in terms of this criterion.

Thus, when a statistical model is used to forecast future outcomes or to test hypotheses, it is imperative to use it correctly.

A goodness-of-fit measure describes how useful the regression equation is for deriving predictions.