某直线段丈量了4次,其结果为:98.427m,98.415m,98.430m,98.426m。计算其算术平均值、观测值中误差,并计算算术平均值中误差


某直线段丈量了4次,其结果为:98.427m,98.415m,98.430m,98.426m。计算其算术平均值、观测值中误差,并计算算术平均值中误差

正确答案:解:算术平均值X=[L]/n=98.4245m观测值中误差m=±sqr([vv]/(n-1))=±0.0066m算数平均值中误差M=±m/sqrn=±0.0033m


Tag:测绘工程 工程测量 平均值 时间:2024-02-19 14:07:48