Question $17$: Refer back to figure $10\mathrm{.}10.$ What range of returns would you expect to see $68$ percent of the time for long$-$term corporate bonds? What about $95$ percent of the time?

Question $17$: Refer back to figure $10\mathrm{.}10.$ What range of returns would you expect to see $68$

percent of the time for long$-$term corporate bonds? What about $95$ percent of the time?