Question

question 9 of 25 suppose there is a strong positive correlation between a and b. which of the following must be true? a. when a increases, b tends to decrease. b. when a increases, b tends to increase. c. an increase in a causes b to decrease. d. an increase in a causes b to increase.

Explanation:

A strong positive correlation means that as one variable (a) changes, the other variable (b) changes in the same direction. Correlation does not imply causation. So, we cannot say that an increase in a causes b to increase or decrease. We can only say that when a increases, b tends to increase.

Answer:

B. When a increases, b tends to increase.