The purpose of the exercises in this chapter is to help you gain an empirical hands-on experience and understanding of the CAPM using bivariate least squares regression techniques. Exercise 1 is particularly useful, since in it you become acquainted with data used in subsequent exercises. In Exercise 2 you obtain and interpret least squares estimates of B, while in Exercise 3 you encounter the B of a very interesting asset- gold. In Exercise 4 you are given the opportunity to learn how you can recover from mistakes-running a regression of X on Y rather than of Y on X for Delta Airlines.In Exercise 5 you gain a better understanding of the benefits of diversification by employing the CAPM to construct a portfolio.