Which of the Following Is the Equation Used for Computing $r_{x y}=\operatorname{cov}(X, Y)\left(s_{x} S_{y}\right)$

question 4

Multiple Choice

Which of the following is the equation used for computing the sample correlation coefficient?

• A) \( r_{x y}=\operatorname{cov}(X, Y)\left(s_{x} S_{y}\right) \)
• B) \( r_{x y}=\frac{\operatorname{cov}(X, Y)}{s_{x} s_{y}} \)
• C) \( r x y=\frac{\left(x_{i}-\bar{x}\right)}{s_{x} s_{y}} \)
• D) \( r_{x y}=\sqrt{\frac{\left(x_{i}-\bar{x}\right)}{s_{x-s_{y}}}} \)

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