68% certainty, returns for Stock A will fall within what range? E(R) s - With 95% certainty, returns for Stock B will fall within what range? E(RB) s With 99% certainty, returns for A will fall within what range? S E E(R) s (R ) Use the folosing information for (a) through (: State of the Economy Probability of State Boom Return on A Return on B 8% ulate the expected return on Stocks A and B E(R) - Calculate the variance for Stocks A and B. 0 = Calculate the standard deviation for Stocks A and B. What are the coefficient of variations of A and B? CVA=_ CV3= Page 12