Compute the Linear Correlation Coefficient Between the Two Variables and Determine

question 26

Multiple Choice

Compute the linear correlation coefficient between the two variables and determine whether a linear relation exists.
- $\begin{array}{r|rrrrrrrr}x & 9 & 2 & 3 & 4 & 2 & 5 & 9 & 10 \\\hline y & 85 & 52 & 55 & 68 & 67 & 86 & 83 & 73\end{array}$

• A) \(\mathrm { r } = 0.708\); linear relation exists
• B) \(r = 0.235\); no linear relation exists
• C) \(\mathrm { r } = - 0.708\); linear relation exists
• D) \(r = 0.708\); no linear relation exists

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