A stock had returns of 30%, 28%, and 14% for the last 3 years. The average return on the stock over this period was 24%. What was the variance of the stock's returns over this period? Do not round intermediate calculations. Round the final answer to 5 decimal places. Numeric Response A stock had returns of 12%, 8.2%, -6.3%, and 2.4%, for 4 of the last 5 years. The arithmetic average return on the stock over this period was 5.6%. What was the stock's return for the missing year? Do not round intermediate calculations. Round the final answer to 2 decimal places. Omit the % sign in your response. For example, an answer of 15.39% should be entered as 15.39. Numeric Response