Which tend to be more volatile, short$-$ or long$-$term interest rates?

Long$-$term interest rates

Short$-$term interest rates

If the inflation rate was $3\mathrm{.}20\%$ and the nominal interest rate was $4\mathrm{.}20\%$ over the last year, what was the real rate of

Disregard cross$-$product terms; that is$,$ if averaging is required, use the arithmetic average. Round intermediate calci

$1\mathrm{.}00\%$

$1\mathrm{.}25\%$

$0\mathrm{.}85\%$

$1\mathrm{.}15\%$