Question

State of the Economy Probability (%) Projected Return (%) Recession 8 -7.29 Moderate 18 3.28 Average...

State of the Economy Probability (%) Projected Return (%)
Recession 8 -7.29
Moderate 18 3.28
Average 47 9.92
Good 18 13.91
Outstanding 9 22.25

using the table above, compute the standard deviation of the retuns,

The standard deviation is (?)% (Round to two decimal places.)

Homework Answers

Answer #1

Expected return=Respective return*Respective probability

=(0.8*-7.29)+(0.18*3.28)+(0.47*9.92)+(0.18*13.91)+(0.09*22.25)=9.1759%

Probability Return Probability*(Return-Mean)^2
0.08 -7.29 0.08*(-7.29-9.1759)^2=21.69006902
0.18 3.28 0.18*(3.28-9.1759)^2=6.257094626
0.47 9.92 0.47*(9.92-9.1759)^2=0.26023186
0.18 13.91 0.18*(13.91-9.1759)^2=4.034106506
0.09 22.25 0.09*(22.25-9.1759)^2=15.38388817
Total=47.62539018%

SD=[Total Probability*(Return-Mean)^2/Total Probability]^(1/2)

=6.90%(Approx).

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