[填空题]
A student measures a lt nf0d*7db s l(wq ypi1.qdd.7ength five times. All of the measurements lie be ofz.bb m ::ok(h6m4qptween $18.8 \mathrm{~cm}$ 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