without replacement sampling的意思|示意

Sampling intervals, not numbers, without replacement.

采样间隔，不是数字，无需更换。

Under simple random sampling scheme without replacement and unknown proportion of population possessing neutral attribute, the optimal allocation of sizes of two sub-samples is given.

对简单随机不放回抽样，在总体非敏感属性个体比例未知的情况下，给出了两个子样本容量的最优配置。

This paper introduced several methods about the concrete strength inspection: the sampling method given by the present specification; simple random sampling without replacement; stratified sampling.

具体介绍了砼强度检测抽样的几种方法：现行规程抽样法；简单随机抽样法；分层抽样法。

Aiming at defects which are exiting in image encryption algorithm based on chaotic sequences, this paper proposes an image chaotic encryption algorithm based on sampling without replacement.

针对现有基于混沌序列的图像加密算法的缺陷，提出一种基于不放回抽样的图像混沌加密算法。