The returns for IMB over the last 4 years are given: Year 1 return = +20% Year 2 return = -25% Year 3 return = +12%. Year 4 return = +15% Assuming no dividends were paid, what was the 4-year holding period return and geometric average return? (8 points) b. A stock had the following prices and dividends. What is the arithmetic average, geometric average AND standard deviation on this stock? (12 points)