You were analyzing a stock and came up with the following
probability distribution of the stock returns. What is the
coefficient of variation on the company's stock?
Round your answer to two decimal places. For example, if your
answer is $345.6671 round as 345.67 and if your answer is .05718 or
5.7182% round as 5.72.
State of the Economy |
Probability of State Occurring |
Stock's Expected Return |
Boom |
25.00% |
19.90% |
Normal |
51.00% |
17.45% |
Recession |
24.00% |
8.10% |
Expected Return=Respective return*Respective probability
=(0.25*19.9)+(0.51*17.45)+(0.24*8.1)=15.8185%
probability | Return | probability*(Return-Expected Return)^2 |
0.25 | 19.9 | 0.25*(19.9-15.8185)^2=4.164660563 |
0.51 | 17.45 | 0.51*(17.45-15.8185)^2=1.357514048 |
0.24 | 8.1 | 0.24*(8.1-15.8185)^2=14.29805814 |
Total=19.82023275% |
Standard deviation=[Total probability*(Return-Expected Return)^2/Total probability]^(1/2)
=4.452%(Approx)
Coefficient of variation=Standard deviation/Expected Return
=(4.452/15.8185)=0.28(Approx).
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