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QUESTION
To test whether extracurricular activity is a good predictor of college success, a college administrator records whether students participated in
Extracurricular
Activity College
Freshman GPA
Yes 3.53
Yes 3.29
Yes 3.86
Yes 3.71
No 2.99
No 3.79
No 3.43
No 2.75
No 3.86
No 2.84
(a) Code the dichotomous variable and then compute a point-biserial correlation coefficient. (Round your answer to three decimal places.)
