The rate of return on the common stock of Ewing Irrigation is expected to be 14% in a boom economy, 8% in a normal economy, and only 2% in a recessionary economy. The probabilities of these economic states are 20% for a boom, 70% for a normal economy, and 10% for a recession. What is the variance of the returns on the common stock of Ewing Irrigation ? ( Show all calculations for full credit .) PLEASE SHOW CALCULATIONS, NO EXCEL OR CALCULATOR.