1. If the return on stock A in year 1 was -1 %, in year 2 was 0 %, in year 3 was 10 % and in year 4 was 15 %, 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.

2. If the return on stock A in year 1 was -10 %, in year 2 was 14 %, in year 3 was 3 % and in year 4 was -7 %, what was the average annual return for stock A over this four year period?

3. If the risk free rate is 3 %, the expected return on the market portfolio is 12% and the beta of Stock B is 0.9 , what is the required rate of return for Stock B according to the Capital Asset Pricing Model (CAPM)?

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