You find a certain stock that had returns of 10.4%, 17.4%, 22.4%, and 18.4% for four of the last five years. The average return of the stock over this period was 11.7%. Assume the face value of the bond is $1,000. What was the stock's return for the missing year? (Round the final answer to 1 decimal place.) Stock's return % What is the standard deviation of the stock's return? (Do not round intermediate calculations. Round the final answer to 2 decimal places.) Standard deviation %