4 Suppose the term structure of interest rates has these spot interest rates: r1 = 6.27. r2 = 6.0%, r3 = 5.8%, r4 = 5.6%, and r5 = 7.2. a. What will be the 1-year spot interest rate in three years if the expectations theory of term structure is correct? (Do not round intermediate calculations. Enter your answer as a percent rounded to 1 decimal place.) 1-year spot in 3 years % b. If investing in long-term bonds carries additional risks, then how would the risk equivalent of a 1-year spot rate in three years relate to your answer to part (a)? O Less than O Greater than O Equal to