Ripken Iron Works believes the following probability distribution exists for its stock. What is the standard deviation of return on the company's stock? Enter your answer rounded to two decimal places. Do not enter % in the answer box. For example, if your answer is 0.12345 or 12.345% then enter as 12.35 in the answer box.

State of the Economy Probability of State Occurring Stock's Expected Return

Boom 0.25 35%

Normal 0.45 13%

Recession 0.30 -24%