Question: 21. Which statement about correlationcoefficient is true? A. Correlation coefficient can measure any relationships between two variables. B. Correlation coefficient can only be a positive

21. Which statement about correlationcoefficient is true?

A.

Correlation coefficient can measure any relationships between two variables.
B.

Correlation coefficient can only be a positive value.
C.

Correlation coefficients can measure casuality.
D.

Correlation coefficient can beaffected by outliers

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