Exercise 2: Fit the following data with (a) a saturation-growth-rate model, (b) a power equation, and (c) a parabola. In each case, plot the data and the equation. X 0.75 2 3 4 6 8 Y 1.2 1.95 2 2.4 2.4 2.7 8.5 82 56 2.6 Exercise 1: Given the data X 5 10 15 20 Y 17 24 31 33 23 25 30 35 37 37 449 40 45 50 40 40 42 41 use least-squares regression to fit (a) a straight line, (b) a power equation, (c) a saturation-growth-rate equation, and (d) a parabola. Plot the data along with all the curves. Is any one of the curves superior? If so, justify