Which of the following is true for a regression analysis?

a. When the actual values of a dependent variable and the corresponding predicted values are the same, the standard error of estimate will be zero

b. If the coefficient of determination is 1.0, then the coefficient of correlation must be 1.0

c. The vertical spread of the data points about the regression line is measured by they-intercept

d. The vertical spread of the data points about the regression line is measured by the change in the slope

e. None of the suggested answers are correct