The relationship between the number of games won by an NHL team and the average attendance at their home games is analyzed.A regression to predict the average attendance from the number of games won has an $\mathrm { R } ^ { 2 }$ = 31.4%.The residuals plot indicated that a linear model is appropriate.What is the correlation between the average attendance and the number of games won.
A)0.099
B)0.560
C)0.314
D)0.686
E)0.828

Question

Quizplus · Accepted Answer

The coefficient of determination $\mathrm { R } ^ { 2 }$ is equal to the square of the correlation coefficient, so the correlation coefficient is $\sqrt { 0.314 } = 0.560$.

The Relationship Between the Number of Games Won by an NHL