Question: find the variance in this case ??? Check my Problem 12-9 Calculating Returns and Variability (L01) You've observed the following returns on Regina Computer's stock

find the variance in this case ??? Check my Problem 12-9

find the variance in this case ???

Check my Problem 12-9 Calculating Returns and Variability (L01) You've observed the following returns on Regina Computer's stock over the past five years: 19%, -13%, 16%, 21%, and 10% a. What was the arithmetic average return on Regina's stock over this five-year period? (Round the final answer to 1 decimal place.) Average return 10.6% b-1. What was the variance of Regina's returns over this period? (Do not round intermediate calculations. Round the final answer to 5 decimal places.) Variance b-2. What was the standard deviation of Regina's returns over this period? (Do not round intermediate calculations. Round the final answer to 1 decimal place.) Standard deviation 13.7 %

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