Suppose a doctor measures the height, x, and head circumference, y, of 8 children and obtains the data below. The correlation coefficient is 0.872 and the least squares regression line is y = 0.236x+11.005. Complete parts (a) and (b) below. Height, x 27 25.75 26 25.5 27.5 26.75 26.25 26.75 27 27 26.75 Head Circumference, y 17.4 17.0 17.3 17.0 17.5 17.2 17.2 17.4 17.4 17.3 17.4 (a) Compute the coefficient of determination, R. R = % (Round to one decimal place as needed.)