Compute each periodic interest rate, as a decimal, given the nominal interest rate and compounding period. $($Round your answers to four decimal places.$)$

$($a$)$

$8\mathrm{.}88\%$ per year, compounded quarterly

$($b$)$

$9\mathrm{.}55\%$ per year, compounded semiannually

$($c$)$

$7\mathrm{.}01\%$ per year, compounded daily