Compute the Linear Correlation Coefficient Between the Two Variables and Determine

question 38

Multiple Choice

Compute the linear correlation coefficient between the two variables and determine whether a linear relation exists.
- $\begin{array}{c|cccccccccc}\mathrm{x} & -12 & -10 & -3 & -6 & -8 & -9 & -7 & -5 & -4 & -11 \\\hline \mathrm{y} & -7 & -5 & 12 & 4 & 1 & -3 & 2 & 6 & 9 & -5\end{array}$

• A) \(\mathrm { r } = 0.990\); linear relation exists
• B) \(\mathrm { r } = 0.881\); no linear relation exists
• C) \(\mathrm { r } = 0.819\); linear relation exists
• D) \(\mathrm { r } = 0.792\); no linear relation exists

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