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

question 18

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

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