In Simple Linear Regression, the Coefficient of Correlation R and the Least

question 127

Short Answer

In simple linear regression, the coefficient of correlation r and the least squares estimate $b _ { 1 }$ of the population slope $\beta _ { 1 }$ : $\begin{array}{|l|l|}\hline\text { A. } & \text {Must be the same size and sign. }\\\hline \text { B. } & \text {May have both have a different size and different sign. } \\\hline \text { C. } &\text { May be the same size but have different sign.}\\\hline \text { D. } &\text { May be different sizes but will have the same sign.}\\\hline\end{array}$