To determine the effectiveness of group study sessions, a college instructor gathers data on hours of attendance and exam scores for students in the class. Which variable, hours of attendance or exam scores, would be the response variable for a least-squares regression equation?
A) hours of attendance
B) exam scores

Question

Quizplus · Accepted Answer

The response variable is the variable that is being predicted or explained by the explanatory variable. In this case, the goal is to determine the effectiveness of group study sessions on exam performance, so the response variable is the exam scores. The hours of attendance would be the explanatory variable, as it is hypothesized to explain or predict the exam scores. Therefore, the response variable for a least-squares regression equation would be exam scores.

To Determine the Effectiveness of Group Study Sessions, a College