In: Finance
Assume that ABC stock has generated the following actual rates of return for the last four years:
Year 1: 15%
Year 2: 13%
Year 3: 17%
Year 4: 18%
What is the standard deviation of this investment?
7.18
2.22
3.45
5.46
Year |
Returns |
(Returns - Average)^2 |
Year-1 |
15.00% |
0.00562500% |
Year-2 |
13.00% |
0.07562500% |
Year-3 |
17.00% |
0.01562500% |
Year-4 |
18.00% |
0.05062500% |
Total |
63.000000% |
0.14750000% |
n=4 (seven observations)
Average = X = Total / n
X = 63%/4
X = 15.75%
Standard Deviation = ((Sum of (Return pertaining to each year - Average)^2)/(n-1))^0.5
Standard Deviation = (0.1475%/3)^0.5
Standard Deviation = 0.022173558
Standard Deviation = 2.22%
Hence, Correct option is > 2.22