Respuesta :
a) The risk premium on the common stock each year is as follows:
Year Risk Premium (%)
2013 33.00%
2014 2.50%
2015 -3.20%
2016 14.05%
2017 23.13%
b) The average risk premium is 13.90%.
c) The standard deviation of the risk premium is 13.21%.
What is a risk premium?
A risk premium is an excess return from an investment above the risk-free rate of return.
An asset's risk premium compensates investors for their risk tolerance.
The risk premium is calculated as the return on an investment minus the return on a risk-free investment.
Data and Calculations:
Year Stock Market T-Bill Return Risk Premium Squared Variability
Return (%) (%) (%) from the mean
2013 33.10 0.10 33.00% 364.81
2014 2.60 0.10 2.50% 129.96
2015 −3.10 0.10 -3.20% 292.41
2016 14.10 0.05 14.05% 0.0225
2017 23.20 0.07 23.13% 85.1929
The total risk premium for 5 years 69.48% 872.3954
Average risk premium 13.9% (69.48%/5) 174.47908 (872.3954/5)
Standard Deviation = 13.21% (√174.47908)
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