Suppose the returns on long-term government bonds are normally distributed. Assume long-term government bonds have a mean return of 6.3 percent and a standard deviation of 9 percent.

What is the probability that your return on these bonds will be less than -11.7 percent in a given year?

Use the NORMDIST function in Excel® to answer this question. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Probability %

What range of returns would you expect to see 68 percent of the time?

(A negative answer should be indicated by a minus sign. Input your answers from lowest to highest to receive credit for your answers. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Expected range of returns % to %

What range would you expect to see 95 percent of the time?

(A negative answer should be indicated by a minus sign. Input your answers from lowest to highest to receive credit for your answers. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Expected range of returns.