Question: The professor swims. Professor Moore swims 2000 yards regularly in a vain attempt to undo middle age. Here are his times (in minutes) and his pulse rate (in beats per minute) after swimming for 23 sessions in the pool:
(a) Make a scatterplot. (Which is the explanatory variable?)
(b) Is the association between these variables positive or negative? Explain why you expect the relationship to have this direction.
(c) Describe the form and strength of the relationship.