Twenty different statistics students are randomly selected. For each of them, their body temperature (degrees°C) is measured and their head circumference (cm) is measured. If it is found that r=0, does that indicate that there is no association between these twovariables?
Choose the correct answer below.
A.Yes, because if r =0, the variables are completely unrelated.
B.No, because while there is no linear correlation, there may be a relationship that is not linear.
C.No, because if r=0,the variables are in a perfect linear relationship.
D.No, because r does not measure the strength of the relationship, only its direction.
