The Value of a Correlation Is Reported by a Researcher

Multiple Choice

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 50% of the variability in the y-variable.
B) The x-variable explains -50% of the variability in the y-variable.
C) The x-variable explains 25% of the variability in the y-variable.
D) The x-variable explains -25% of the variability in the y-variable.