1. If the return on stock A in year 1 was -3 %, in year 2 was 17 %, in year 3 was 14 % and in year 4 was 5 %, what was the standard deviation of returns for stock A over this four year period? (Round your answer to 1 decimal place and record without a percent sign. If your final answer is negative, place a minus sign before the number with no space between the sign and the number).

2. If the return on stock A in year 1 was 12 %, in year 2 was 13 %, in year 3 was 8 % and in year 4 was 6 %, what was the average annual return for stock A over this four year period? (Round your answer to 1 decimal place and record without a percent sign. If your final answer is negative, place a minus sign before the number with no space between the sign and the number).

3. If the risk free rate is 5 %, the expected return on the market portfolio is 12% and the beta of Stock B is 0.7 , what is the required rate of return for Stock B according to the Capital Asset Pricing Model (CAPM)? (Round your answer rounded to one decimal place and record without a percent sign).