Kali's Ski Resort, Inc. stock is quite cyclical. In a boom economy, the stock is expected to return 30 percent in comparison to 12 percent in a normal economy and a negative 20 percent in a recessionary period. The probability of a recession is 15 percent while there is a 30 percent chance of a boom economy. The remainder of the time, the economy will be at normal levels. What is the standard deviation of the returns? 10.05% 12.60% 15.83% 17.46% 25.04%