Answered You can hire a professional tutor to get the answer.
Suppose that the last three years of returns were: Year 1: -10% Year 2: +16% Year 3:
Suppose that the last three years of returns were:
Year 1: -10%
Year 2: +16%
Year 3: -12%
What is the standard deviation of those returns this is only a SAMPLE of historical performance and not the population?