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Your next task is to analyze a proposed portfolio of Chevron, American Airlines, and ExxonMobil stocks. The forecast analyst in your team has provided you

Your next task is to analyze a proposed portfolio of Chevron, American Airlines, and ExxonMobil stocks. The forecast analyst in your team has provided you with a table that summarizes the distribution of returns for each firm (Hint: this is an extended version of the boom,normal, and recession problem of slide 3 in Modern Portfolio Theory)(15 points)
State of the
Economy
Probability
Chevron
American Airlines
ExxonMobil
State 1
5%
-8.3%
19.4%
-15.0%
State 2
10%
-3.9%
8.2%
-10.0%
State 3
15%
-1.3%
5.0%
-1.8%
State 4
20%
0.9%
3.2%
0.8%
State 5
20%
3.0%
1.0%
2.8%
State 6
15%
5.2%
-1.1%
5.4%
State 7
10%
8.3%
-3.6%
20.0%
State 8
5%
14.2%
-5.0%
30.0%
a) Obtain the expected return, variance, and standard deviation of returns for each stock.
b) Obtain the expected return, variance, and standard deviation of returns for a portfolio that invests -$300,000 in Chevron, $500,000 in American Airlines, and $600,000 in ExxonMobil.Your next task is to analyze a proposed portfolio of Chevron, American Airlines, and ExxonMobil stocks. The forecast analyst in your team has provided you with a table that summarizes the distribution of returns for each firm (Hint: this is an extended version of the boom,normal, and recession problem of slide 3 in Modern Portfolio Theory)(15 points)
State of the
Economy
Probability
Chevron
American Airlines
ExxonMobil
State 1
5%
-8.3%
19.4%
-15.0%
State 2
10%
-3.9%
8.2%
-10.0%
State 3
15%
-1.3%
5.0%
-1.8%
State 4
20%
0.9%
3.2%
0.8%
State 5
20%
3.0%
1.0%
2.8%
State 6
15%
5.2%
-1.1%
5.4%
State 7
10%
8.3%
-3.6%
20.0%
State 8
5%
14.2%
-5.0%
30.0%
a) Obtain the expected return, variance, and standard deviation of returns for each stock.
b) Obtain the expected return, variance, and standard deviation of returns for a portfolio that invests -$300,000 in Chevron, $500,000 in American Airlines, and $600,000 in ExxonMobil.

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