If all the points in a scatter diagram lie on the least squares regression line,then the coefficient of correlation must be:
A) 1.0
B) -1.0
C) either 1.0 or -1.0
D) 0.0

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The Answer of If all the points in a scatter diagram lie on the least squares regression line,then the coefficient of correlation must be:
A) 1.0
B) -1.0
C) either 1.0 or -1.0
D) 0.0

If All the Points in a Scatter Diagram Lie on the Least