You are considering a security with the following possible rates of return: Probability Return (%) 0.20 9.6 0.30 12.0 0.30 14.4 0.20 16.8 REQUIRED: (0) Calculate the expected rate of return. (i) Calculate the standard deviation of the returns. b. Berjaya Corp. has a very conservative beta of 7, while Biotech Corp. has a beta of 2.1. The T-bill rate is 5%, and the market is expected to return 15%. 0 What is the expected return of Berjaya Corp., Biotech Corp., and a portfolio composed of 60% of Berjaya Corp. and 40% Biotech Corp.? (ii) Why is Biotech Corp.'s expected return not three times that of Berjaya Corp.? (I) Discuss whether the standard deviation of a portfolio is, or is not a weighted average of the standard deviations of the assets in the portfolio Fully explain your