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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Definitions:

Laid Off

The temporary or permanent dismissal of employees from their job due to business-related reasons like cost-cutting or downsizing.

Illegal Strike

A work stoppage by a group of workers that is not authorized by the relevant labor laws or violates a binding labor agreement.

Union Shop

A workplace where employees are not required to join the union in order to be hired, but must join within a certain period of being employed and remain members as a condition of employment.

Closed Shop

A workplace where only workers who are already members of the union can be hired.