The following are the returns on the Ontario companys stocks over the past five years:

7%, -12%, 11%, 38%, and 14%

1. Calculate the arithmetic average, variance, and standard deviation on these stock over these five years.

2. Suppose the average inflation rate over this period was 3.5% and the average T-Bill rate over this period was 4.2%
   1. What was the average real return on Ontario company?
   2. What was the average nominal risk premium on Ontario company?