a). Arithmetic average = sum of all values/number of values
Arithmetic average for large-company stocks = (3.66% + 14.44% + 19.03% -14.65% -32.14% + 37.27%)/6 = 4.60%
Arithmetic average for Treasury bills = (4.66% + 2.33% + 4.12% + 5.88% + 4.90% + 6.33%)/6 = 4.70%
b). Variance = where n = number of returns; ri = return for period i; r = average return
Standard deviation = variance^0.5
Standard deviation for large-company stocks = 22.71%
Standard deviation for Treasury bills = 1.29%
Calculations shown below:
c-1). Average risk premium = -0.10%
c-2). Standard deviation of the risk period over this period = 22.81%
Calculations show below:
Consider the following rates of return: US Large- Year Company Stocks 1 3.66 % 14.44 3...
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