Find the value of the linear correlation coefficient r. The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands): $$\begin{array} { | l | r | r | r | r | r | r | r | r | }
\hline \text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \
\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73 \
\hline
\end{array}$$
A) 0.235
B) 0.246
C) -0.071
D) 0.708

Question

Find the value of the linear correlation coefficient r. The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands): $$\begin{array} { | l | r | r | r | r | r | r | r | r | } 
\hline \text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \
\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73 \
\hline
\end{array}$$
A) 0.235
B) 0.246
C) -0.071
D) 0.708

Quizplus · Accepted Answer

We can use a calculator or a spreadsheet program to find that the linear correlation coefficient for this data set is r = 0.708.

Find the Value of the Linear Correlation Coefficient R A) 0235 B) 0

Find the Value of the Linear Correlation Coefficient R A) 0235
B) 0