Category:Pearson Correlation Coefficient

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This category contains results about Pearson Correlation Coefficient.

Let $X$ and $Y$ be random variables.

Let the variances of $X$ and $Y$ exist and be finite.

Then the Pearson correlation coefficient of $X$ and $Y$, typically denoted $\map \rho {X, Y}$, is defined by:

$\map \rho {X, Y} = \dfrac {\cov {X, Y} } {\sqrt {\var X \, \var Y} }$

where $\cov {X, Y}$ is the covariance of $X$ and $Y$.

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