You find a certain stock that had returns of 9.4%, -16.4%, 21.4%, and 17.4% for four of the last five years. The average return of the stock over this period was 10.7%. 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.) Stocks 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 %