S Problem 10-9 Calculating Returns and Variability [LO 1] You've observed the following returns on Pine Computer's stock over the past five years: -27.9 percent, 15.6 percent, 34.2 percent, 3.3 percent, and 22.3 percent. a. What was the arithmetic average return on the stock over this five-year period? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. b. What was the variance of the returns over this period? Note: Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616. c. What was the standard deviation of the returns over this period? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. a. Arithmetic average return b. Variance c. Standard deviation 9.50 % %

Problem 10.9 Calculating Returns and Variability [LO 1] Yourve observed the following returns on Pine Computer's stock over the past five yeors: -279 percent, 15.6 percent, 342 percent, 33 porcent, and 22.3 percent. a, What was the arthmetic average refurn on the stock over this five-year period? Note: Do not round intermedlate calculations and enter your answer as a percent rounded to 2 decimal places, e.9., 32.16. b. What wis the variance of the returns over this period? Note: Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 161616 . c. What was the standard deviation of the returns over this period? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimat places, e.g., 32,16