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You've observed the following returns on Yamauchi Corporation's stock over the past five years: -24.6 percent, 13.4 percent, 29.8 percent, 2.2 percent, and 21.2 percent.

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You've observed the following returns on Yamauchi Corporation's stock over the past five years: -24.6 percent, 13.4 percent, 29.8 percent, 2.2 percent, and 21.2 percent. a. What was the arithmetic average return on the stock over this five-year period? (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? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 32.161616.) c. What was the standard deviation of the returns over this period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Answer is complete but not entirely correct Arithmetic average return Variance % 8.40 . b. 354.848000 Standard deviation 18.83

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