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Q5: You’ve observed the following returns on Doyscher Corporation’s stock over t

ID: 2710290 • Letter: Q

Question

Q5:

You’ve observed the following returns on Doyscher Corporation’s stock over the past five years: –25.2 percent, 13.8 percent, 30.6 percent, 2.4 percent, and 21.4 percent.

Requirement 1:

What was the arithmetic average return on the stock over this five-year period? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)

  Arithmetic average return:   8.60 % I know this one..

Requirement 2:

(a)

What was the variance of the returns over this period? (Do not round intermediate calculations. Round your answer to 6 decimal places (e.g., 32.161616).)

  Variance:

(b)

What was the standard deviation of the returns over this period? (Do not round intermediate calculations. Enter your answer as a percentage rounded to 2 decimal places (e.g., 32.16).)

  Standard deviation       %

Explanation / Answer

2)

AR = 8.60%

Year

Return( R)

D=R- ER

D^2

1

-25.20%

-33.800%

0.114244

2

13.80%

5.200%

0.002704

3

30.60%

22.000%

0.0484

4

2.40%

-6.200%

0.003844

5

21.40%

12.800%

0.016384

Total

0.185576

Variance = Sum of D^2 / (n-1)

                   = 0.185576/(5-1)

                    =0.046394

b) Standard Deviation = variance ^0.50

                                                = 0.046394^0.50

                                                = 21.54%

Year

Return( R)

D=R- ER

D^2

1

-25.20%

-33.800%

0.114244

2

13.80%

5.200%

0.002704

3

30.60%

22.000%

0.0484

4

2.40%

-6.200%

0.003844

5

21.40%

12.800%

0.016384

Total

0.185576