Ir. Moremi who works as an Analyst at Capital Securities, have been monitoring the performance of stocks of arclays, Sechaba, and Cresta and has compiled the following: a) The market's standard deviation is 18%. Using the risk-free rate of 2.0% and an expected market return of 9.5%, what is the expected return of each stock? [9 marks] b) Based on your calculations in (a) describe the relationship between a firm's return and its beta. [2 marks]