Suppose we have the following returns for a large-company stock and Treasury bills over a six year period:

Calculate the arithmetic average returns for large-company stock and T-bills over this period

Year Large Company US Treasury Bill 4.42% 8.51% 14.12% 3.58% 3.80% 19.01 5.96% 13.67% 4.88% 27.16 37.46% 3.14%