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A research methods student conducts a study on the relationship

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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?
1 The relationship between the two variables is weak.
2 More extroverted people have fewer friends.
3 She ought to use a bar graph to display her results.
4 She made an error in computing Pearson’s r.

 
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