you've observe the following return on crash-n-burn computer's stock over the past five years: 14 percent, -9 percent, 16 percent, 21 percent, and 3 percent. Suppose the average inflation rate over this period was 3.5 percent and the average t-bill rate over the period was 4.2 percent.

What was the average real risk-free rate over this time period?

What was the average real risk premium?