multi-stage sample信息详情
[统计]多级样本
multi───pref.多
sample───n.样品,样本;(化验的)抽样;(用于新乐曲中的)节录乐曲;确定(模拟信号)瞬时值;v.品尝,体验;抽样检验;节录(某一曲子,用于新乐曲中);n.(Sample)(美、英、爱尔兰)桑普尔(人名);adj.样品的,作为例子的
stage───vt.举行;上演;筹划;n.(Stage)人名;(英)斯特奇;vi.举行;适于上演;乘驿车旅行;n.阶段;舞台;戏剧;驿站
multi object───多目标
stage by stage───adv.逐步地,一步一步地;分阶段地
multi color───adj.五彩缤纷的,多色的;n.多色
vital multi───生命多重
multi coating───n.多层镀膜
multi grain───杂粮
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.───方法按分层整群抽样的方法抽取样本,并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.───阶段抽样比率估计及其样本量选择的问题,给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。
Large-scale sample surveys are always undertaken with stratified multi-stage sampling.───大型抽样调查总是采用分层多阶段抽样。
- pilot-controlled hoist
- mary likes reading books
- international area
- l like it too
- magnetic belt separator
- less mode
- onthemoon
- navigational method
- mobile number or email
- little che
- navigational parameter
- lots of work to do
- mobile number tracker
- international banana museum
- mess yourself
- magnetic binary core
- pilot-controlled landing
- ideataba
- juvenalia
- less money
- lots of work to do to be done