We would make a scatter plot of hours studied vs GPA. On the plot we would include a line of regression for the data of only males, one for the data of only females, and one for everybody overall. This would show the relationship between the hours studied and the GPA, as well as showing if there were any large differences in the relationship between males and females. We would also make a scatterplot of hours of sleep vs GPA, to get an idea of that relationship.
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