When all the points in a scatter diagram lie precisely on the estimated regression line, the sample coefficient of correlation will equal 0.

Name: When all the points in a scatter diagram lie precisely on the estimated regression line, the sample coefficient of correlation will equal 0.
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Quizplus · Accepted Answer

If all points lie precisely on the estimated regression line, then the sample coefficient of correlation will equal either 1 or -1, depending on the slope of the line.

When All the Points in a Scatter Diagram Lie Precisely