If we plotted the level of good cholesterol in the blood against the incidence of heart disease,we would observe a
A) negative correlation.
B) positive correlation.
C) zero correlation.
D) an uncertain result.
E) time series.

Question

Quizplus · Accepted Answer

It has been observed that higher levels of good cholesterol (HDL) in the blood are associated with a lower incidence of heart disease. Therefore, if we plot the level of HDL against the incidence of heart disease, we would see a negative correlation - as the level of HDL increases, the incidence of heart disease decreases.

If We Plotted the Level of Good Cholesterol in the Blood