[填空题]
A student measures a length five times. All of the mej)nd5y*pt 6d.cgdff3 d2lao0(sr :d y asurements lie+hkm9,z q5c9g dc)a hk between $18.8 \mathrm{~cm}$ and $19.2 \mathrm{~cm}$. What should the student quote as the absolute uncertainty in the length? The absolute uncertainty is $cm$ (please only input numerical value without units and without the $\pm$ symbol.)
Post time 2024-8-21 21:38:19