Which of the following is the equation used for computing the sample correlation coefficient? A) r_xy = cov(X,Y)(sxsy) B) r_xy = $\frac { \operatorname { cov } ( X , Y ) } { s _ { x } s _ { y } }$ C) r_xy = $\frac { \left( x _ { i } - \bar { x } \right) } { s _ { x } s _ { y } }$ D) r_xy = $\sqrt { \frac { \left( x _ { i } - \bar { x } \right) } { s _ { x } - s _ { y } } }$

Question

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The sample correlation coefficient is calculated using the formula $r = \frac { \operatorname { cov } ( X , Y ) } { s _ { x } s _ { y } }$, where cov(X, Y) is the covariance between variables X and Y, and $s_x$ and $s_y$ are the standard deviations of X and Y, respectively.

Which of the Following Is the Equation Used for Computing cov⁡(X,Y)sxsy\frac { \operatorname { cov } ( X , Y ) } { s _ { x } s _ { y } }sx​sy​cov(X,Y)​

Which of the Following Is the Equation Used for Computing $\frac { \operatorname { cov } ( X , Y ) } { s _ { x } s _ { y } }$