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State (i) Probability (p i ) Return (R i ) -------------------------------------

ID: 2720855 • Letter: S

Question

               State (i)                Probability (pi)                Return (Ri)

               --------------------------------------------------------------------

               Normal                      .50                            .25

               Recession                 .35                           .05

               Depression              ??                    –.35

Calculate the expected return for the following stock? E(R) = pi Ri

               State (i)                Probability (pi)                Return (Ri)

               --------------------------------------------------------------------

               Normal                      .50                            .25

               Recession                 .35                           .05

               Depression              ??                    –.35

A. 7% B. 8% C. 9% D. 10%

Calculate the variance of the stock in Question 5 above.  2 = pi [Ri – E(Ri)]2

A. .0235 B. .0306 C. .0424 D. .0487

Explanation / Answer

1) E(R)=0.50*0.25+0.35*0.05+0.15*(-0.35)=9%

Depression PROB=1-(0.50+0.35)=0.15

variance of the stock =0.50*(0.25-0.09)^2+0.35*(0.05-0.09)^2+0.15*(-0.35-0.09)^2=4.24% OR 0.0424

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