"Okay What Does a Correlation Coefficient Tell Us" Zoe Asks

"Okay. What does a correlation coefficient tell us" Zoe asks the members of her psychology study group. "The strength of a relationship between two variables," answers Yvonne. "The direction of the relationship between two variables," adds Will. "The range of the scores in a set of data," offers Vera. Who's right

A) Yvonne
B) Will
C) Vera
D) Both Yvonne and Will are right.