4. What kind of plot does a Pearson correlation use to display its data?

8. Why do we say that correlation does not mean causation?

10. What two things (that have also been calculated in previous chapters) do we multiply when we are calculating the Pearson product moment?

12. A graph displaying a _____________ correlation will have data that starts on the bottom of lower left side of the graph and rises up to the right.

A ___________correlation will have data start on the top of left side of the graph and then fall down to the right side of the graph.

14. The sign (+ or -) of the correlation coefficient tells us the _________ , where the number (0-1) tells us the _________ of the relationship.

18. Why is the degrees of freedom equation df=n-2 for the correlation equation instead of df=n-1 as we have used in all the other statistical tests?