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 stocks return for the missing year? (Round the final answer to 1 decimal place.)

What is the standard deviation of the stocks return? (Do not round intermediate calculations. Round the final answer to 2 decimal places.)