Supposing the return from an investment has the following probability distribution   Return   Probability     R (%)   8                 0.2   10               0.2   12               0.5   14               0.1   Required: What is the expected return of the investment? What is the risk as measured by the standard deviation of  expected returns?

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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Supposing the return from an investment has the following probability distribution

  Return   Probability  

  R (%)

  8                 0.2

  10               0.2

  12               0.5

  14               0.1

 

Required:

What is the expected return of the investment?
What is the risk as measured by the standard deviation of  expected returns?
Return
(R)
Exp. Ret.
Prob. P
(a)
Exp. Ret. P. x
(c)= a x R
Deviation
R-R
Variance
Standard deviation is the square root of variance
Dev
a(R-R)²
Transcribed Image Text:Return (R) Exp. Ret. Prob. P (a) Exp. Ret. P. x (c)= a x R Deviation R-R Variance Standard deviation is the square root of variance Dev a(R-R)²
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