If the slope of the estimated regression line is positive, the correlation between X and Y
A) must be positive.
B) must be negative.
C) may be zero.
D) depends on the mean and variance of X and Y.

Question

Quizplus · Accepted Answer

When the slope of the estimated regression line is positive, it indicates that as X increases, Y also increases, which directly implies a positive correlation between X and Y.

If the Slope of the Estimated Regression Line Is Positive