Given the Least Squares Regression Line Y-Hat = 3

Short Answer

Given the least squares regression line y-hat = 3.52 - 1.27x, and a coefficient of determination of 0.81, the coefficient of correlation is: $\begin{array}{|l|l|}\hline\text { A. } & -0.85 \\\hline \text { B. } & 0.85 \\\hline \text { C. } & -0.90 \\\hline \text { D. } & 0.90 \\\hline\end{array}$