$1.$ You$$ve observed the following returns on Pine Computer$$s stock over the past five years: $24\mathrm{.}3$ percent, $13\mathrm{.}2$ percent, $29\mathrm{.}4$ percent, $2\mathrm{.}1$ percent, and $21\mathrm{.}1$ percent. The average inflation rate over this period was $3\mathrm{.}21$ percent and the average T$-$bill rate over the period was $4\mathrm{.}3$ percent.

a$.$ What was the average real return on the stock?

b$.$ What was the average nominal risk premium on the stock?