equations and answers

Q1) What is the total percentage return for an investor who purchased a stock for $8.47, received $3.11 in dividend payments, and sold the stock for $10.37? Q2) A stock had the following annual returns 11.63%, 15.08%, 23.28%, and 34.83%. What is the stock's: a) expected return? What is the stock's: b) variance? What is the stock's: c) standard deviation? Q3) A stock has monthly returns of -25.10%, -15.72%, 01.84%, and 00.35%. What is the stock's geometric average return? When inputting an answer, round your answer to the nearest 2 decimal places (for VARIANCE round to 4 decimal places). If you need to use a calculated number for further calculations, DO NOT round until after all calculations have been completed. For the final answer, Round to 2 decimal places (for VARIANCE round to 4 decimal places). Q4) A stock has an expected return of 11.92% and a standard deviation of 18.07%. For this stock, what are the a) Upper range of 68% confindence interval b) Lower range of 68% confindence interval: c) Upper range of 95% confindence interval d) Lower range of 95% confindence interval: e) Upper range of 99% confindence interval: f) Lower range of 99% confindence interval