9. You've observed the following returns on Crash-n-burn stock the past 5 years: 7%,-12%, 11%, 38%, and 14%. What is the arithmetic average return on...

9. You've observed the following returns on Crash-n-burn stock the past 5 years: 7%,-12%, 11%, 38%, and 14%. What is the arithmetic average return on Crash-n-burns stock over this 5 year period? What was the variance of Crash-n-burns returns over this period? The standard deviation? Show your work.

Question:You’ve observed the following returns on Crash-n-Burn Computer’s stock over the past fiveyears: 7 percent, -12 percent, 11 percent, 38 percent, and 14 percent.What was the...