Find the Value of the Linear Correlation Coefficient R A) $0.708$

Multiple Choice

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

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