Strength of a Linear Relationship: Pearson Correlation Coefficient

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For two variables $X$ and $Y$ the following sample statistics are known:

Sample standard deviation of $X$ : $s_X = 13.97$
Sample standard deviation of $Y$ : $s_Y = 6.28$
Sample covariance: $s_{X,Y}=-16.318$

Calculate the Pearson Correlation Coefficient between $X$ and $Y$ . Round your answer to $3$ decimal places.

$r_{X,Y}=$

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