Question: Need help with this finance question! Help 4. What is the approximate standard deviation of returns if over the past 4 years an investment returned

Need help with this finance question! Help
 Need help with this finance question! Help 4. What is the

4. What is the approximate standard deviation of returns if over the past 4 years an investment returned 8.9%, -11.1%,-11.1%, and 12.8%? (Do not round intermediate calculations.) O 11.06% 810% 0 910% O 10.10%

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