Calculate the standard deviations for Roll and Ross by filling in the following table (verify your answer using returns expressed in percentages as well as decimals):

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(3) (4) Squared Return (5) (2) Probability of State of Economy (1) State of Economy (5) Return Deviation Product from Expected Return (2) x (4) Deviation Roll Bust Boom Ross Bust Boom Security Returns if State Occurs State of Economy Probability of State of Economy Roll Ross Bust .40 - 10% 21% Boom .60 28 8.