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Graph/chart - 30 de 25 20- Probability % 15- 10- 5- 0- B D E 15 Probat 10- 5- 0- B D NE A A: -15% return B: -10% return C:0% return D: 10% return E: 15% return The figure in the popup window, shows the one-year return distribution for RCS stock. Calculate: a. The expected return. b. The standard deviation of the return. Note: Make sure to round all intermediate calculations to at least five decimal places. a. The expected return. The expected return is %. (Round to two decimal places.)