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):
$\begin{array}{l|r|r|r|r|r|r|r|r}
\text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \
\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73
\end{array}$

A) $- 0.071$
B) $0.708$
C) $0.235$
D) $0.246$

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):
$\begin{array}{l|r|r|r|r|r|r|r|r}
\text { Cost } & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \
\hline \text { Number } & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73
\end{array}$

A) $- 0.071$
B) $0.708$
C) $0.235$
D) $0.246$

Quizplus · Accepted Answer

The correct answer is B because the linear correlation coefficient $r$ is 0.708, which indicates a strong positive linear relationship between the cost of advertising and the number of products sold.

Find the Value of the Linear Correlation Coefficient rrr the Paired Data Below Consist of the Costs of the Paired

Find the Value of the Linear Correlation Coefficient $r$ the Paired Data Below Consist of the Costs of the Paired