Suppose the returns on long-term corporate bonds are normally distributed. Refer to Figure 12.10 and Table A.5. a. What is the approximate probability that your return on these bonds will be less than 2.1 percent in a given year? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What range of returns would you expect to see 95 percent of the time? (Enter your answers for the range from lowest to highest. A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) c. What range would you expect to see 99 percent of the time? (Enter your answers for the range from lowest to highest. A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) FGURE 12.10 Historical Returns, Stendard Devietions, and Fiequency Distributions: 1926-2019 TNBIL A.5 Cumulative normal distrilution This table shows the probability (Nid)] of ebserving a value less than or equal to d. Fof axarnghe, as illiaicated, if t is =24, then Nod) is 4052