Which of the Following Are Measures of the Linear Relationship

Short Answer

Which of the following are measures of the linear relationship between two variables? $\begin{array}{|l|l|}\hline A&\text { The covariance.}\\\hline B&\text { The coefficient of correlation.}\\\hline C&\text {The coefficient of determination. }\\\hline D&\text {All of these choices are correct. }\\\hline \end{array}$