Question

In: Finance

The table below shows the one-year return distribution of Startup Inc. Probability 35% 20% 20% 10%...

The table below shows the one-year return distribution of Startup Inc.

Probability 35% 20% 20% 10% ?%
Return -90% -75% -50% -25% 1000%

a. Calculate the expected return.

b. Calculate the standard deviation of the return.

c. Replace the expected return of 1000% in the last column in the table above with the expected return value that minimizes the standard deviation of the returns.

a. The expected return is %. (round to one decimal)

b. The standard deviation of the return is %. (round to one decimal)

c. The value of expected return in last column which minimizes the standard deviation of the returns is %. (round to one decimal. If negative, enter a minus sign "-".)

Solutions

Expert Solution

Solution a) Calculation of Expected Return

Probabilty (p)

Return (x)

Expected Return = (p) * (x)

0.35

-90

-31.5

0.2

-75

-15

0.2

-50

-10

0.1

-25

-2.5

0.15

1000

150

91

Therefore, Expected Return = ∑ (p) * (x)   = 91%

Solution 2) Calculation of Standard Deviation of the return

Probabilty (p)

Return (x)

Expected Return = (p) * (x)

(x) - Expected Return

((x) - Expected Return) ^ 2

((x) - Expected Return ^ 2) * (p)

0.35

-90

-31.5

-181

32761

11466.35

0.2

-75

-15

-166

27556

5511.2

0.2

-50

-10

-141

19881

3976.2

0.1

-25

-2.5

-116

13456

1345.6

0.15

1000

150

909

826281

123942.15

91

146241.5

Standard Deviation of the return = Variance^(1/2)

                                                            = 146241.5 ^ (1/2)

                                                            = 382.42%

   Solution c) Calculation of Expected Return and Standard Deviation after replacing 1000% in the last column by Expected Return value.

Probabilty (p)

Return (x)

Expected Return = (p) * (x)

(x) - Expected Return

((x) - Expected Return) ^ 2

((x) - Expected Return ^ 2) * (p)

0.35

-90

-31.5

-44.65

1993.62

697.77

0.2

-75

-15

-29.65

879.12

175.82

0.2

-50

-10

-4.65

21.62

4.32

0.1

-25

-2.5

20.35

414.12

41.41

0.15

91

13.65

136.35

18591.32

2788.70

-45.35

3708.03

Standard Deviation of the return = Variance^(1/2)

                                                            = 3708.03 ^ (1/2)

                                                            = 60.89%


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