Reading 11- LOS A (Part 1): Q3

3.A simple linear regression equation had a coefficient of determination (R²) of 0.8. What is the correlation coefficient between the dependent and independent variables and what is the covariance between the two variables if the variance of the independent variable is 4 and the variance of the dependent variable is 9?

       Correlation coefficient        Covariance

A)                                    0.91          4.80

B)                                    0.89          4.80

C)                                    0.91          5.34

D)                                    0.89          5.34