Which of the following observations is an example of a positive correlation?
A)When women gain less weight than average during pregnancy,the birthweights of their babies tend to be lower than average.
B)When a population's intake of green tea increases,the percentage of lung cancer cases in that population decreases.
C)When members of a population consume fewer fruits and vegetables,their risk of high blood pressure increases.
D)When a group of children increases their physical activity levels,the percentage of the children who contract cold infections decreases.

Question

Quizplus · Accepted Answer

In a positive correlation, both variables move in the same direction. In option A, both the weight gain during pregnancy and the birthweights of babies tend to be lower, indicating a positive correlation.

Which of the Following Observations Is an Example of a Positive