You've observed the following nominal returns on Regina Computer's stock over the past five years: 20%, -12%, 17%, 20%, and 10%. suppose the average inflation rate over this period was 1.7% and the average T-bill rate over the period was 4.6%. a. What was the average real return on Regina's stock? (Do not round intermediate calculations Round the final answer to 2 decimal places.) Average real return % b. What was the average nominal risk premium on Regina's stock? (Do not round intermediate calculations Round the final answer to 2 decimal places.) Average nominal risk premium %