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

Multiple Choice

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

A) rₓᵧ = cov(X,Y) (sₓsᵧ)

B) rₓᵧ = $\frac{\operatorname{cov}(X, Y) }{s_{X}{ }_{y} y}$

C) rₓᵧ = $\frac{\left(x_{i}-\bar{x}\right) }{s_{x} s_{y}}$

D) rₓᵧ = $\sqrt{\frac{\left(x_{i}-\bar{x}\right) }{s_{x}-s_{y}}}$