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You have the following rates of return for a risky portfolio for several recent years: 2018: 25%; 2019: 16%; 2020: -8%; 2021: 16%. What was
You have the following rates of return for a risky portfolio for several recent years: 2018: 25%; 2019: 16%; 2020: -8%; 2021: 16%. What was the average, or mean return over the period? What was the standard deviation of returns over the period?
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