If data set A of (x, y) data has correlation coefficient r=0.65, and a second data set B has correlation r= -0.65, then
a. the points in A exhibit a stronger linear association than B.
b. the points in B exhibit a stronger linear association than A.
c. neither A nor B has a stronger linear association.
d. you can't tell which data set has a stronger linear association without seeing the data or seeing the scatterplots.
e. a mistake has been made-r cannot be negative.
Answer: c. neither A nor B has a stronger linear association.