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6 2.5 points You have gathered 12 years of annual stock returns for Walmart stock. Using that data, you estimate the return variance to be

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6 2.5 points You have gathered 12 years of annual stock returns for Walmart stock. Using that data, you estimate the return variance to be 0.38. What is the corresponding estimate for the stock's volatility? Enter your answer as a decimal and show 4 decimal places. Type your answer... Next

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