Which One of the Following Statements About the Sample Correlation

Multiple Choice

Which one of the following statements about the sample correlation coefficient is true?

A) It is always a value between 0 and 1.
B) The represents the proportion of observed variation in the dependent variable that is explained by the fitted regression model.
C) It is measured in the same units as the dependent variable.
D) It is measured in the same units as the independent variable.
E) It is a unitless measurement.