The Correlation Coefficient Between the Two Variables, Ear Size and IQ

Multiple Choice

The correlation coefficient between the two variables, ear size and IQ score, is zero.What does this statement mean?

A) The scores of the two variables are evenly matched.
B) As the value of one variable changes, the other is not necessarily affected.
C) As the value of one variable changes, the other increases.
D) As the value of one variable changes, the other decreases.