In a simple linear regression problem, r and b₁
A) may have opposite signs.
B) must have the same sign.
C) must have opposite signs.
D) are equal.

Question

Quizplus · Accepted Answer

In simple linear regression, the correlation coefficient (r) and the slope of the regression line (b₁) must have the same sign because both indicate the direction of the relationship between the independent and dependent variables.

In a Simple Linear Regression Problem, R and B₁