[填空题]
A student measures a length five times. All of the measurh/zjvfv yu :n*bf-z5 7ements li 3 ojmiu() n*cey*gb1 rzz+8f, 0yuhw,lfr4va e 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