Please answer part a and part b. Also the return % for A and B in the graph are negitive numbers

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 [N (Round to two decimal places.) Graph/Chart 25 20- 9 10- 5- A-25% return B:-10% return C: 0% return D: 10% return E: 25% return Print Done