Portfolio Returns and Volatilities Given the following information, calculate the expected return and standard deviation for a portfolio that has 45 percent invested in Stock A, 35 percent in Stock B, and the balance in Stock C.

     

Returns

State of Economy

Probability   of State of Economy

Stock A

Stock B

Stock C

Boom

0.7

15%

18%

20%

Bust

0.3

10

0

10