Question

A stock will have a loss of 10.9 percent in a bad economy, a return of...

A stock will have a loss of 10.9 percent in a bad economy, a return of 10.7 percent in a normal economy, and a return of 24.6 percent in a hot economy. There is 31 percent probability of a bad economy, 38 percent probability of a normal economy, and 31 percent probability of a hot economy. What is the variance of the stock's returns?

Multiple Choice

A. .03977

B. .14101

C. .01988

D. .02982

E. .01491

Homework Answers

Answer #1

Expected return=Respective return*Respective probability

=(-10.9*0.31)+(10.7*0.38)+(24.6*0.31)=8.313%

Probability Return Probability*(Return-Expected Return)^2
0.31 -10.9 0.31*(-10.9-8.313)^2=114.433204
0.38 10.7 0.38*(10.7-8.313)^2=2.16515222
0.31 24.6 0.31*(24.6-8.313)^2=82.2325744
Total=198.830931%

Standard deviation=[Total Probability*(Return-Expected Return)^2/Total probability]^(1/2)

=(198.830931)^(1/2)

=14.10%(Approx)

Variance=Standard deviation^2

=0.01988(Approx).

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