Equation of the regression line Correlation coefficient, r Day 1 y=0.027+0.022x 0.9998 Day 2 y=0.016+0.024x 0.9980 Day 3 y=0.040+0.021x 0.9990 Day 4 y=0.033+0.034x 0.9964

Table 1: P Linear regression data (y=mx+b) and correlation coefficients (r) for plots of propranolol.