Consider the following information: Rate of Return if State Occurs State of Economy Recession Normal Boom Probability of State of Economy 0.20 0.50 0.30 Stock A 0.04 0.07 0.13 Stock B -0.19 0.15 0.31 Required: Given that the expected return for Stock A is 8.200%, calculate the standard deviation for Stock A. (Do not round your intermediate calculations.) (Click to select)