Q.

The value of a correlation is reported by a researcher to be r = −0.5. Which of the following statements is correct?

A. The x-variable explains 25% of the variability in the y-variable.
B. The x-variable explains −25% of the variability in the y-variable.
C. The x-variable explains 50% of the variability in the y-variable.
D. The x-variable explains −50% of the variability in the y-variable.
Answer» A. The x-variable explains 25% of the variability in the y-variable.
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