If the correlation coefficient (r)= 1.00,then A)the Y-intercept (b₀)must equal 0. B)the explained variation equals the unexplained variation. C)there is no unexplained variation. D)there is no explained variation.

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A correlation coefficient of 1.00 indicates a perfect linear relationship between the two variables, meaning that all the points fall on a straight line. In this case, there is no variability in the relationship and hence, no unexplained variation.

If the Correlation Coefficient (R)= 1.00,then