A sample of college students is surveyed in order to learn more about how GPA is associated with the number of hours spent studying per week. When GPA is correlated with number of hours spent studying...


A sample of college students is surveyed in order to learn more about how GPA is associated with the number of hours spent studying per week.  When GPA is correlated with number of hours spent studying per week, it is found thatr = 0.50.  What is a correct interpretation of this correlation?





1. On average, a 30% increase in number of hours spent studying per week results in a 15% increase in GPA.



2. Fifty percent of a student’s GPA can be explained by the number of hours spent studying per week.



3. The average college student spends half of their time studying.



4. Higher GPAs tend to be associated with a larger number of hours spent studying per week.



5. There is no relationship between GPA and number of hours spent studying per week




Jun 08, 2022
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