What is the duration of a bond with two years to maturity if the bond has a coupon rate

of $7\mathrm{.}2$ percent paid semiannually and the market interest rate is $5\mathrm{.}2$ percent? $($Do not

round intermediate calculations and round your answer to $5$ decimal places, e$.$g$.,$

$32\mathrm{.}16161.)$

Duration