In a simple linear regression problem,r and b₀: A)must be equal to each other. B)must have the same sign. C)must have opposite signs. D)are not related.

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Quizplus · Accepted Answer

In simple linear regression, $r$ (the correlation coefficient) and $b$ (the slope of the regression line) must have the same sign. This means if the relationship between the variables is positive, both $r$ and $b$ will be positive, indicating a positive relationship. Conversely, if the relationship is negative, both $r$ and $b$ will be negative, indicating a negative relationship.

In a Simple Linear Regression Problem,r and B0

In a Simple Linear Regression Problem,r and B₀