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? What is the expected rate of return on Thete, Inc.'s common stock?Submit your answer as a percentage and round to two decimal places.