Answer with explanation: Coefficient of determination(r²), is defined as, how well the data values are associated with each other when Regression line is drawn. In regression analysis, the coefficient of determination measures , how well the regression predictions approximate the real data points, means it measures the closeness between two variables.The Value of r², lies between 0 to 1. If value of r²=1, it shows ,regression line that is data values are Perfectly associated with each other. If ,r²=0, it means there is no variation between two variables.There is 0% variation between two variables. →Coefficient of Variation=[Correlation coefficient]² =r² =(0.854)² =0.854 × 0.854 =0.729316 =0.730(Approx)
