If the cost equation yields a coefficient of determination of 77%, it means that the: a. dependent variable explains 23% of the variability in cost. b. dependent variable explains 77% of the variability in cost. c. independent variable explants 23% of the variability in cost. d. independent variable explains 77% of the variability in cost. The percentage of variability in the dependent variable explained by an independent variable is called the: a. coefficient of correlation. b. coefficient of regression. C. coefficient of determination. d. coefficient of gradation The higher the percentage of cost variability explained by the coefficient of determination, a. the better job the independent variable does of explaining the dependent variable b. the lesser is the accuracy with which the independent variable explains the dependent variable c. the better job the dependent variable does of explaining the independent variable d. the lesser is the accuracy with which the dependent variable explains the independent variable