Question

Terminology Using the lengths (in.), chest sizes (in.), and weights (lb) of bears from Data Set 9 “Bear Measurements” in Appendix B, we get this regression equation: Weight = -274 + 0.426 Length +12.1 Chest Size. Identify the response and predictor variables

Short answer

The response variable is the weight of bears (in lb), and the predictor variables are the length (in inches) and chest size (in inches).

Step-by-step solution

Given information

A regression equation is computed to predict the weight of a bear (in lb) using the linear relationship between the variables weight, length, and chest size.

Response variable

In a regression equation, the variable predicted in the equation depends on other independent variables. It is called the response variable.

Here, the weight of the bear needs to be predicted from the equation, and it depends on two other variables.

Thus, the variable weight is the response variable.

Predictor variables

An independent variable utilized in an equation to predict another variable is called the predictor variable.

In the given equation, length and chest size are used to predict weight.

Thus, length and chest size are predictor variables.