A research methods student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. She computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true
The relationship between the two variables is weak.
More extroverted people have fewer friends.
She ought to use a bar graph to display her results.
She made an error in computing Pearson’s r.