Calculate the expected return on stock of Gamma Inc.: State of the economy Probability of the states Percentage returns Economic recession 30% -8.3% Steady economic growth 39% 3.1% Boom Please calculate it 12.6% Round the answers to two decimal places in percentage form. (Write the percentage sign in the "units" box) Calculate the expected standard deviation on stock: State of the economy Probability of the states Percentage returns Economic recession 28% -2% Steady economic growth 21% 5% Boom Please calculate it 14% Round the answers to two decimal places in percentage form. (Write the percentage sign in the "units" box)