3) Iris Corporation is considering an investment in one of the two common shares. The table below provides a probability distribution for the returns on shares A and B Probability 0.2 0.3 0.3 Return A 25% 10% 15% Probability 0.4 0.5 0.2 Return B 10% 30% 20% a. Based on the following information given, calculate both shares: Expected Return (4 marks) b. Standard Deviation (5 marks) Coefficient of variation (2 marks)