In simple linear regression, the coefficient of correlation r and the least squares estimate b ₁ of the population slope b ₁: A)must be equal. B)must have the same sign. C)are not related. D)None of these choices.

Question

Quizplus · Accepted Answer

The coefficient of correlation (r) and the least squares estimate of the population slope (b) must have the same sign. This is because both r and b reflect the direction of the relationship between the independent and dependent variables. If the relationship is positive, both will be positive; if it's negative, both will be negative.

In Simple Linear Regression, the Coefficient of Correlation R and the Least