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Portfolio Security Stock A Stock B Stock C Return 11% 16% 25% Probability 20% 30% 50% (1) (ii) Find its expected return of th
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Answer #1

1)

Expected return = 0.11*0.2 + 0.16*0.3 + 0.25*0.5

Expected return = 0.022 + 0.048 + 0.125

Expected return = 0.195 or 19.5%

2)

Standard deviation = [0.2(0.11 - 0.195)2 + 0.3(0.16 - 0.195)2 + 0.5(0.25 - 0.195)2]1/2

Standard deviation = [0.001445 + 0.000368 + 0.001513]1/2

Standard deviation = [0.003326]1/2

Standard deviation = 0.0577 or 5.77%

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