1. The possible returns from investing in BestMax share are as follows: State of economy Probability of state of economy Return if state occurs Strong 0.26 96% Normal 0.51 12% Weak 0.23 -83% Based on the above information, calculate the following for BestMax share: (a) Standard deviation of return (9) (b) Coefficient of variation (3) (c) What does the coefficient of variation reveal about an investment's risk that the standard deviation does not? Explain. (4) (d) What is 'risk' in the context of financial decision making? Explain. (4)