7.please show your solutions

7. Consider the following scenarios for a project Probability 0.10 0.25 0.50 0.10 0.05 IRR 8 % 13% 20% 34% 45% (a) The expected return of the project is %. (Round to two decimal places.) (b) The standard deviation (or, risk) of the project is %. (Round to two decimal places.) (c) What does the value you found in part (b) mean? Briefly explain