... biangular coordinates 双角坐标 bias of ratio estimate 比率估计偏倚 bias of unweighted estimate 未加权估计的偏倚 ...
双语例句
1
For the ratioestimate in two-stage sampling, the bias and mean square errors(MES) of the estimater value have been obtained, and the estimater value of the MSE has been given.
给出了二阶比估计量的偏差、估计量的均方误差以及均方误差的估计。
2
In this paper, the biasof the ratio estimator and the estimate of mean square errors of this estimator with known numerator have been compared and discussed.