A Pearson correlation of r = +0.85 indicates that a graph of the data would show:
a. points clustered close to a line that slopes up to the right.
b. points widely scattered around a line that slopes up to the right.
c. points widely scattered around a line that slopes down to the right.
d. points clustered close to a line that slopes down to the right.
Answer: a. points clustered close to a line that slopes up to the right.