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Returns Year 1 12 % 25% 28 34 3 13 - 7 -27 4 5 10 14 Using the returns shown above, calculate the arithmetic average returns,

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Answer #1
Year X Y
1 12.00% 25.00%
2 28.00% 34.00%
3 9.00% 13.00%
4 -7.00% -27.00%
5 10.00% 14.00%
Average= 10.40% 11.80%
Standard dev= 12.42% 23.34%
Variance= 0.01543 0.05447
Where
Average or Mean = Sum of all observations/Count of all observations
Sample Standard deviation =((∑k=1 to N (observationk – average))/(N-1))^(1/2)    
Variance = standard deviation^2
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