1. Over the past 4 years, large-company stocks and U.S. Treasury bills have produced the returns stated below. Given this information,

What are the average rates of return on large-company stocks and Treasury bills?

What are the standard deviation for large-company stocks and Treasury bills?

year 1 2 3 4

percent return on large company stocks 9 13 21 3

percent return on US treasury bills 3 2 4 4