THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A professor of statistics is interested in studying the relationship between the number of hours graduate students spent studying for his comprehensive final exam and the exam score.The results of the regression analysis of hours studied on exam scores are presented below.
-What does a coefficient of correlation of 0.80 indicate?
A)Sixteen percent of the relationship between the dependent and independent variables are linear.
B)Eight percent of the variation in the independent variable is explained by the dependent variable.
C)Sixty four percent of the variation in the dependent variable is explained by the independent variable
D)Eighty percent of the variation in the independent variable is explained by the dependent variable.

Question

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A professor of statistics is interested in studying the relationship between the number of hours graduate students spent studying for his comprehensive final exam and the exam score.The results of the regression analysis of hours studied on exam scores are presented below. 
-What does a coefficient of correlation of 0.80 indicate?
A)Sixteen percent of the relationship between the dependent and independent variables are linear. 
B)Eight percent of the variation in the independent variable is explained by the dependent variable. 
C)Sixty four percent of the variation in the dependent variable is explained by the independent variable 
D)Eighty percent of the variation in the independent variable is explained by the dependent variable.

Quizplus · Accepted Answer

A coefficient of correlation of 0.80 indicates a strong positive relationship between the hours spent studying and the exam scores. Specifically, 64% of the variation in the dependent variable (exam scores) can be explained by the independent variable (hours studied).