One student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. He computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true?

A. The relationship between the two variables is weak.
B. More extroverted people have fewer friends.
C. He should use a bar graph to display his results.
D. He made an error in computing Pearson’s r.

Correct me if I m wrong but I do think the variables are weak. So I think choice A would be correct. Any help would be appreciated

1 answer

Disagree. What is the maximum value you can have for a correlation coefficient?