The Risk Premium on common stock in each year is as given in the attached image.
A risk premium is a measure of additional return required by an individual to compensate for being exposed to a higher degree of risk.
The average risk premium is given as: 15.90. This is calculated by adding the risk premium for the 5-year period and dividing by 5:
(33 + 12.5 + -3.2 + 14.05 + 23.13)/5
= 15.896
[tex]\approx[/tex] 15.9
The standard deviation is computed as 12.04. See the attached image.
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