Which of the following statements about correlation coefficients is TRUE?
A) The correlation coefficient equals the proportion of times two variables lie on a straight line.
B) The correlation coefficient will be +1.0 only if all the data lie on a perfectly horizontal straight line.
C) The correlation coefficient measures the fraction of outliers that appear in a scatterplot.
D) The correlation coefficient is a unitless number and must always lie between -1.0 and +1.0, inclusive.
Correct Answer:
Verified
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