Probability 0.3 0.4 0.3 Expected Return -10% 596 15% Assume that the above table represents IBM's probability distribution of returns, based on 100 years of data (30 years with -10%, 40 years with 5%, and 30 years with 15%). What is the sample standard deviation of IBM? Instruction: Type your answer in the unit of percentage point, and round to three decimal places. E.g., if your answer is 0.0106465 or 1.06465%, should type ONLY the number 1.065, neither 0.0106465, 0.0106, nor 1.065%, because I already have percentage sign at the end of the problem. Otherwise, Blackboard will treat it as a wrong