You've observed the following nominal returns on Regina Computer's stock over the past five years: 16%, -16%, 18%, 28%, and 10% suppose the average inflation rate over this period was 2.1% and the average T-bill rate over the period was 42% 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 %