sample line和sampling line有什么区别

sample line和sampling line有什么区别 line sample是什么意思 sampling 1) simple random sample 2) stratified sampling 3)systematic random samples 4) cluster sampling 5)multistage samples. AP统计学中的两个公式问题在Princeton的书中有一个Sampling Distribution of a Sample Proportion和Sampling Distribution of a Sample Mean,他们的方差公式是不一样的.这两个有什么区别吗?为什么他们的方差公式不 COUNTER SAMPLE 和 PROTO SAMPLE ... sampling rate 和sampling speed有什么不同不是问字义解释！在概念上，或者实际处理中的不同 请教stratified sampling和quota sampling的区别这两个到底有什么区别啊?不要只是翻译 estimation sample 和holdout sample 属于判别分析里的知识. 外贸中sample order和sample goods 如题 physical sample和producton sample是什么意思,有什么区别production eviews中 pairwise sample 和common sample有什么区别 overarching sampling 英语翻译1、Random sampling （in large numbers）provides the best chance ofan unbiased representative sample of a target population.2、A deliberate effort is made to identify the characteristic of a sample most important for it to be represent 英语翻译simple random sampling:A sample of n subjects is selected in such a way that every possible sample of the same size n has the same chance of being chosen 线路图中的neutral line 和 hot line specimen 和 sample的区别~如题, writing sample和research proposal 分别是什么?