Please answer both

Question Completion Status: QUESTION 39 1161) What is the standard deviation of a security which has the following expected returns? State of Economy Boom Normal Recession O 7.61 percent O 7.82 percent O 7.48 percent O 7.67 percent O 7.91 percent Probability of State Rate of Return of Economy .10 .75 .15 if State Occurs 19% 13% QUESTION 40 You combine a set of assets using different weights such that you produce the following results