Chapter 3, Problem T3.7SPT

To determine

To find: the least-squares regression line.

Answer to Problem T3.7SPT

The correlation will also be -0.44

Explanation of Solution

Given:

  $\begin{array}{l}\overline{x}=\overline{y}=0\\ s_x=s_y=1\\ b=-0.44\end{array}$

Formula used:

  $b=r\frac{s_y}{s_x}$

Calculation:

  $\begin{array}{l}b=r\frac{s_y}{s_x}\\ r=b\frac{s_x}{s_y}\\ =-0.44\frac{1}{1}\\ =-0.44\end{array}$

Hence, the correct option is (e)