Question

Suppose your expectations regarding the stock market are asfollows:State of the EconomyProbabilityHPR...

Suppose your expectations regarding the stock market are as follows:

State of the EconomyProbabilityHPR
Boom0.441%
Normal growth0.415
Recession0.2-19



Use above equations to compute the mean and standard deviation of the HPR on stocks. (Do not round intermediate calculations. Round your answers to 2 decimal places.)



Mean%
Standard deviation%


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Answer #1

1)

Mean = 0.4*0.41 + 0.4*0.15 + 0.2*(-0.19)

Mean = 0 164 + 0.06 - 0.038

Mean = 0.186 or 18.60%

2)

Standard deviation = [0.4(0.41 - 0.186)2 + 0.4(0.15 - 0.186)2 + 0.2(-0.19 - 0.186)2]1/2

Standard deviation = [0.02007 + 0.000518 + 0.028275]1/2

Standard deviation = 0.2211 or 22.11

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