Which statement about the correlation coefficient,r,is true?
A)The calculation of r assumes that X and Y are metric variables whose distributions have the same shape.
B)The correlation coefficient computed for a population is denoted by ρ(rho).
C)Data obtained by using rating scales with a small number of categories tends to deflate r.
D)All of the statements are true.

Question

Quizplus · Accepted Answer

All of the statements are true. 
A) The calculation of r assumes that X and Y are metric variables whose distributions have the same shape. 
B) The correlation coefficient computed for a population is denoted by ρ(rho). 
C) Data obtained by using rating scales with a small number of categories tends to deflate r.

Which Statement About the Correlation Coefficient,r,is True