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STATE OF WEATHER PROBABILITY OF STATE OF WEATHER INVESTMENT AND LIKELY RETURNS Pig Farming Crop Farming...

STATE OF WEATHER PROBABILITY OF STATE OF WEATHER INVESTMENT AND LIKELY RETURNS
Pig Farming Crop Farming Floriculture
BAD 20% 2% -3% -5%
GOOD 50% 10% 7% 11%
EXCELLENT 30% 20% 15% 25%
INVESTMENT N$ 300, 000 250, 000 450, 000

Required:

a. Calculate the farmer’s Expected return on the floriculture investment.

b. What is the Standard Deviation of the pig farming project?

c. What is the farmer's Expected combined return if he invests in the three farming activities as shown in the table?

d. What is the Standard Deviation on the farmer’s portfolio?

Solutions

Expert Solution

STATE OF WEATHER PROB. Pig Farming Crop Farming Floriculture
BAD 20% 2% -3% -5%
GOOD 50% 10% 7% 11%
EXCELLENT 30% 20% 15% 25%
INVESTMENT N$ 300000 250000 450000 1000000
Weight to Total 30% 25% 45% 100.00%
a.The farmer’s Expected return on the floriculture investment:
ER(FL)=Sum of(Prob.*Returns)
ie.(20%*-5%)+(50%*11%)+(30%*25%)=
12.00%
b. Standard Deviation of the pig farming project
We need to find expected return for pig-farming project
ER(PF)=Sum of(Prob.*Returns)
ie.(20%*2%)+(50%*10%)+(30%*20%)=
11.40%
Std. deviation =Sq. rt. Of(sum of (r,PF-ER,PF)^2)
((20%*(2%-11.40%)^2)+(50%*(10%-11.40%)^2)+(30%*(20%-11.40%)^2))^(1/2)=
0.06391
6.39%
c.First we will find the expected returns of the portfolio under the 3 states of weather(without applying probability) as follows:
for which we need weights of each in the investment -portfolio--which we have calculated as 30%,25% & 45% --in the table above---
ER,p(Bad)=(30%*2%)+(25%*-3%)+(45%*-5%)= -0.024
ER,p(Good)=(30%*10%)+(25%*7%)+(45%*11%)=0.097
ER,p(Excellent)=(30%*20%)+(25%*15%)+(45%*25%)=-0.21
Now, applying the given probabilities of the 3 weather,to the respective expected returns, calculated above,
(20%*-0.024)+(50%*0.097)+(30%*0.21)=
we get the portfolio expected return as ,
10.67%
Portfolio Variance =
(0.20*(-0.024-0.1067)^2)+(0.50*(0.097-0.1067)^2)+(0.30*(0.21-0.1067)^2)=
0.00666481
d. Portfolio standard deviation=
Sq. rt. Of variance
ie. (0.006665)^(1/2)=
8.16%

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