Response to the following problem:
Dollinger, Matyja, and Huber (2008) studied the correlations between overall exam performance in an upper-division psychology course and several other variables. The following Pearson r correlation coefficients were obtained:
Overall college GPA .41
Number of absences -.38
Hours spent studying per week .21
Hours spent working per week -.06 (not significant)
Describe each correlation and draw graphs depicting the general shape of each relationship.