Suppose the returns on long$-$term corporate bonds and T$-$bills are normally distributed. Refer to Figure $12\mathrm{.}10.$ Use the NORMDIST function in Excel ${?}^{}$ to answer the following questions.

a$.$ What is the probability that in any given year, the return on long$-$term corporate bonds will be greater than $10$ percent? Less than $0$ percent? $($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

b$.$ What is the probability that in any given year, the return on T$-$bills will be greater than $10$ percent? Less than $0$ percent? $($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

c$-1.$ In $1980,$ the return on long$-$term government bonds was $-3\mathrm{.}95$ percent. How likely is it that such a low return will recur at some point in the future? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

c$-2.$ T$-$bills had a return of $11\mathrm{.}24$ percent in this same year. How likely is it that such a high return on T$-$bills will recur at some point in the future? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

$\backslash$table$[[$a$.$ Greater than $10$ percent,$\%$