Security Returns if State Occurs State of Economy Bust Boom Probability of State of Economy 0.30 0.70 Roll -12% 23 Ross 16% Calculate the standard deviations for Roll and Ross by filling in the following table: (A negative value should be indicated by a minus sign. Do not rour intermediate calculations. Round your answers to 4 decimal places.) State of Probability of State of Return Deviation from Expected Return Economy Economy Squared Return Deviation Product Roll Bust 0.30 0.70 Boom Ross Bust 0.30 0.70 Boom -0.0300 0.0009 02 =