Given the following information, what is the standard deviation of a portfolio that is invested 35 percent in stock A, 35 percent in stock B, and 30 percent in stock C?

State of Probability of Rate of Return if State Occurs

Economy State of Economy Stock X Stock Y Stock Z

Boom 0.15 0.22 0.10 0.04

Normal 0.55 0.15 0.09 0.05

Recession 0.30 0.05 0.08 0.07

Standard Deviation = ________._____%

Answers as a percentage with two decimals places (example 10.55); leave off the "%" symbol