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In a regression model, if every sample point is on the
regression line (all errors are 0), then

a. the correlation coefficient would be 0.
b. the correlation coefficient would be -1 or 1.
c. the coefficient of determination would be -1.
d. the coefficient of determination would be 0.

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In a regression model, if every sample point is on the
regression line (all errors are 0), then

(b) the correlation ...

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