You find a certain stock that had returns of 10.9%, -17.9%, 22.9%, and 18.9% for four of the last five years. The average return of the stock over this period was 12.2%. 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 % eBook What is the standard deviation of the stock's return? (Do not round intermediate calculations. Round the final answer to 2 decimal References places.) Standard deviation