Question

PLEASE SHOW WORK The following annual returns for Stock E are projected over the next year...

PLEASE SHOW WORK

The following annual returns for Stock E are projected over the next year for three possible states of the economy. What is the stock’s standard deviation, variance, and mean of returns?E(R) = 8.5% ; σ = 22.70%; mean = $7.50; standard deviation = $2.50

State

Prob

E(R)

Boom

10%

40%

Normal

60%

20%

Recession

30%

- 25%

Homework Answers

Answer #1
State Actual return (AR) Probability Expected Return(ER)
Boom 40 0.1 4.00
Normal 20 0.6 12.00
Recession -25 0.3 -7.50
TOTAL 8.50

Expected return = 8.5%

State AR ER AR-ER (AR-ER)^2 Probability {(AE-EE)^2}*Prob.
Boom 40 8.50 31.50 992.25 0.1 99.23
Normal 20 8.50 11.50 132.25 0.6 79.35
Recession -25 8.50 -33.50 1122.25 0.3 336.68
TOTAL 515.25

Standard deviation = square root of sum of {(AE-EE)^2}*Prob. = (515.25)^1/2 = 22.70%

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