Question: The average annual return for the S&P 500 from 1886 to 2020 is 11.5%, with a standard deviation of 17%. Based on these numbers,

The average annual return for the S&P 500 from 1886 to 2020

The average annual return for the S&P 500 from 1886 to 2020 is 11.5%, with a standard deviation of 17%. Based on these numbers, what is a 95% confidence interval for 2021's returns? OA. -7.5%, 30.5% OB. 11.25%, 22.75% OC. -22.5%, 45.5% OD. 12.5%, 35.5% Next

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