问题

在相同条件下,对同一被测量进行连续多次测量,测量值为: 0.01mm ,0.02mm,0.01mm ,0.03mm。用极差法计算得到的测量重复性为()。(注:测量次数为4 时,极差系数近似为2)

A:0.02mm
B:0.01mm
C:0.015mm
D:0.005mm
正确答案是:
标签: ,