[填空题]
A student measures a ck)i +wh b:8nbwlr1ozq6 oxt11.(veklength five times. All of the measurements lie between ,i 52ft6pb1d g9,f/i.yocq mpjg 5adh$18.8 \mathrm{~cm}$ 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