3. Analysts predict that over the next year, Thete, Inc.'s common stock has a 30% chance of returning 25%, a 40% chance of returning 16%, and a 30% chance of returning 6%. What is the standard deviation of returns on Thete, Inc.'s common stock? Submit your answer as a percentage and round to two decimal places. 4. Han Corporation issues a bond which has a coupon rate of 9.40%, a yield to maturity of 7.75%, a face value of $1,000, and a market price of $990. What is the semiannual interest payment? Round to two decimal places