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The following are the percentage returns on Apple stock and Sony stock. What is the monthly standard deviation of the return for Apple? (smaple answer
The following are the percentage returns on Apple stock and Sony stock. What is the monthly standard deviation of the return for Apple? (smaple answer format: 12.25%)
| A | B | C |
1 | Month | Apple | Sony |
2 | January | 10 | 9 |
3 | February | 5 | 4 |
4 | March | 5 | 20 |
5 | April | 7 | 13 |
6 | May | -4 | 2 |
7 | June | 5 | 5 |
8 | July | -2 | -3 |
9 | August | -10 | -2 |
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