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

question 91

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

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

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