The Volume of Oxygen Consumed (In Liters Per Minute) While

Multiple Choice

The volume of oxygen consumed (in liters per minute) while a person is at rest and while a person is exercising (running on a treadmill) were both measured for 50 subjects. The goal is to determine if the volume of oxygen consumed during aerobic exercise can be estimated from the amount consumed at rest. The results are plotted below. The scatterplot suggests that there is:

A) a positive association between the volume of oxygen consumed at rest and while running.
B) an outlier in the plot.
C) both a positive association between volume of oxygen consumed at rest and while running, and an outlier in the plot.
D) neither a positive association between volume of oxygen consumed at rest and while running, nor an outlier in the plot.