Cherry:
Average return=Total return/Total time period
=(10+11-5+4+8)/5=5.6%
Return | (Return-Average Return)^2 |
10 | (10-5.6)^2=19.36 |
11 | (11-5.6)^2=29.16 |
-5 | (-5-5.6)^2=112.36 |
4 | (4-5.6)^2=2.56 |
8 | (8-5.6)^2=5.76 |
Total=169.2% |
Standard deviation=[Total (Return-Average Return)^2/(Time Period-1)]^(1/2)
=[169.2/(5-1)]^(1/2)
=[169.2/4]^(1/2)
=6.50%(Approx)
Variance=Standard deviation^2
=0.00423
Straw:
Average return=Total return/Total time period
=(16+18-4+1+16)/5=9.4%
Return | (Return-Average Return)^2 |
16 | (16-9.4)^2=43.56 |
18 | (18-9.4)^2=73.96 |
-4 | (-4-9.4)^2=179.56 |
1 | (1-9.4)^2=70.56 |
16 | (16-9.4)^2=43.56 |
Total=411.2% |
Standard deviation=[Total (Return-Average Return)^2/(Time Period-1)]^(1/2)
=[411.2/(5-1)]^(1/2)
=[411.2/4]^(1/2)
=10.14%(Approx)
Variance=Standard deviation^2
=0.01028
Cherry | Straw | |
Variance | 0.00423 | 0.01028 |
Standard deviation | 6.50% | 10.14%(Approx). |
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