The volume of oxygen consumed (in liters per minute) while a person is at rest and while he or she is exercising (running on a treadmill) was measured for each of 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.

Question

konradzuse · Answer

The scatterplot suggests
A.	there is a positive association between the volume of oxygen consumed at rest and while running.
B.	there is an outlier in the plot.
C.	both a and b.
D.	neither a nor b.

konradzuse · Answer

Imo C, there is an outlier on the right, and there is a positive association.

anonymous · Answer

I'd say you're right, however the positive correlation is very weak.

konradzuse · Answer

Yeah I'd say moderate-weak.

konradzuse · Answer

Thanks :).

anonymous · Answer

No worries, if you get the chance to just make a note of that for extra points from your teacher :)