(b) Bee Plus plans to form an investment portfolio that comprised of 40 percent investment in Share X, 35 percent investment in Share Y and 25 percent in Share Z. The followings are the estimated returns for all the three types of financial assets: Year Probability (P) Expected Return (%) of Financial Assets Y N Strong 0.48 10 15 20 Weak 0.52 10 6 Calculate: 1. Expected return for each share. (9 marks) ii. Expected return for investment portfolio of share X, Y and Z. (3 marks) iii. Standard deviation for the investment portfolio. (8 marks)