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7. Historical returns. Calculate the variance and standard deviation of Tesla Inc from 2015 to 2020. Use Excel and formulas. a. Write your results in
7. Historical returns. Calculate the variance and standard deviation of Tesla Inc from 2015 to 2020. Use Excel and formulas. a. Write your results in the following distribution table and show the range of returns you would obtain with a 68 percent of probability. Is this a safe investment? Why?
| P&G (2018-2022) Year | Return |
| 2018 | 5.40% |
| 2019 | 6.20% |
| 2020 | 7.01% |
| 2021 | 9.50% |
| 2022 | 12.30% |
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