A researcher selects a random sample of 200 students to determine whether there is a relationship between the number of days a student is absent and the student's grado point average The
correlation coofficient, r, of the data is -0.765. On the basis of the correlation coofficient alone, can the
researcher conclude that an increase in the number of days a student is absont causes the student's
grades to drop?
Yes, because ris very close to -1,
No, because other factors may have influenced the student grades,
No, because ris negative,
Yes, because the students in the sample were randomly selected