9. Calculating Returns and Variability You've observed the following returns on Yamauchi Corporation's stock over the past five years: -10 percent, 24 percent, 21 percent, 11 percent, and 8 percent. LO 1 What was the arithmetic average return on the stock over this five-year period? a. b. What was the variance of the returns over this period? The standard deviation? 10. Calculating Real Returns and Risk Premiums For Problem 9, suppose the average inflation rate over this period was 3.1 percent and the average T-bill rate over the period was 4.1 percent. LO1 a. What was the average real return on the stock? b. What was the average nominal risk premium on the stock?

Q: the answer is incorrect is not 64pi

A: see below the answer

Q: The answer

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Q: I already put .103 and it was incorrect.

A: The given z-scores are z=1.12 and z=1.9.

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A: We  will find the required.

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Q: What is the Standard Deviation for the following numbers: Variance = 284

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Q: can you show how you got 625 for k and L? and how did you get them at $375

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Q: 2 (63 = -8) +2= 12

A: Given:        263x-8+2 = 12