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Ratling [72]
3 years ago
5

1. Based on the following information calculate the expected return and standard deviation for two stocks: State of Economy Prob

ability of State of Economy Rate of Return if State Occurs Stock A Stock B Recession .15 .04 −.17 Normal .55 .09 .12
Business
1 answer:
Aloiza [94]3 years ago
6 0

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Based on the following information calculate the expected return and standard deviation for two stocks:

State of Economy                                    Recession    Normal     Boom

Probability of State of Economy                   .15             .55           0.30

Rate of Return if State Occurs                      

Stock A                                                            .04             .09            .17

Stock B                                                            -.17             .12             .27

Answer:

The expected return of stock A is 10.65%

The expected return of stock B is 12.15%

The standard deviation of stock A is 4.5%

The standard deviation of stock B is 13.92%

Explanation:

The expected return of stock A is given by

E(A) = \sum ROR_{A} \cdot P \\\\E(A)  =  0.04\cdot 0.15 + 0.09 \cdot 0.55 + 0.17 \cdot 0.30 \\\\E(A)  = 0.006 + 0.0495 + 0.051 \\\\E(A)  = 0.1065 \\\\

Therefore, the expected return of stock A is 10.65%

The expected return of stock B is given by

E(B) = \sum ROR_{B} \cdot P \\\\E(B)  =  -0.17\cdot 0.15 + 0.12 \cdot 0.55 + 0.27 \cdot 0.30 \\\\E(B)  = -0.0255 + 0.066 + 0.081 \\\\E(B)  = 0.1215 \\\\

Therefore, the expected return of stock B is 12.15%

The standard deviation of stock A is given by\sigma_A = \sqrt{\sum (ROR_{A} -E(A))^2 \cdot P} \\\\\sigma_A = \sqrt{(0.04 -0.1065)^2 \cdot 0.15 + (0.09 -0.1065)^2 \cdot 0.55 + (0.17 -0.1065)^2 \cdot 0.30} \\\\\sigma_A = \sqrt{0.000663337 + 0.000149737 + 0.00120967} \\\\\sigma_A = 0.045Therefore, the standard deviation of stock A is 4.5%

The standard deviation of stock B is given by\sigma_B = \sqrt{\sum (ROR_{B} -E(B))^2 \cdot P} \\\\\sigma_B = \sqrt{(-0.17 -0.1215)^2 \cdot 0.15 + (0.12 -0.1215)^2 \cdot 0.55 + (0.27 -0.1215)^2 \cdot 0.30} \\\\\sigma_B = \sqrt{0.012745 + 0.0000012375 + 0.00661567} \\\\\sigma_B = 0.1392Therefore, the standard deviation of stock B is 13.92%

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