please help to solve this problem

Zarina is considering buying the shares of Maxis, Digi, and Celcom. The possible return for the companies' shares next year are as follows: Based on the information given, calculate the following for each stock: i. Calculate the expected rate of return of the shares. (6 Marks) ii. Calculate the standard deviation of expected return of the shares. (9 Marks) iii. Calculate the Coefficient of Variation (CV). (6 Marks) iv. In your opinion, which investment should you choose? State your reason. (3 Marks) 2. Raja Berhad has RM40,000 invested in a share which has a beta of 0.7 and RM20,000 invested in another share with a beta of 1.8 . If these are the only (6 Marks) two investments in its portfolio, calculate the portfolio beta