random sampling method造句
造句與例句
手機(jī)版
- Methods : 2502 residents above 15 years old were selected and studied through random sampling methods in beijing
方法：采用隨機(jī)抽樣方法對北京市人口15歲以上的2502人進(jìn)行流行病學(xué)調(diào)查。 - In order to study the awareness , treatment and control rates andthe risk factors of hypertension in qingdao rural residents , a cluster random sampling method was used
為了調(diào)查青島農(nóng)村居民高血壓的患病率、知曉率、服藥率、控制率及其影響因素，采用整群隨機(jī)抽樣法，對7個(gè)村的18歲以上居民進(jìn)行血壓測量及相關(guān)因素調(diào)查。 - This paper deals with the problem of non - uniform weed numbers obtained with all types of random sampling methods , discussing the importance of statistical control methods in herbicide efficacy evaluation and showing pertinent calculations
針對隨機(jī)取樣中的各樣方內(nèi)雜草數(shù)目不一致問題，討論了統(tǒng)計(jì)控制方法在除草劑藥效評價(jià)中的重要性以及計(jì)算過程。 - The questionnaires were given to rafters , in siaokuluan and lao - nong river , and non - random sampling method is used . 292 effective questionnaires were collected by siaokuluan river , 325 by lao - nong river
本研究采問卷調(diào)查的方式，對象為參與花蓮秀姑巒溪及高雄?濃溪泛舟之游客，并于兩條溪流泛舟終點(diǎn)采便利取樣方式進(jìn)行調(diào)查，時(shí)間從2005年8月至9月于周休二日假日時(shí)實(shí)施。 - According to the hierarchical random sampling method , we select three areas which are jinan , taian and dezhou . in order to know the morality present situation , then some teachers and students were chosen among the 49 the senior middle schools in jinan , 35 ones in taian and 30 ones in dezhou as research objects
利用分層隨機(jī)抽樣的方法從高、中、低三個(gè)層次抽出濟(jì)南、泰安、德州三個(gè)地區(qū)，然后再從濟(jì)南市49所高中、泰安的35所高中、德州的30所高中中分別隨機(jī)分別抽出兩所高中(分重點(diǎn)和非重點(diǎn))的體育教師、學(xué)生為研究對象，依此來了解山東省體育教師的道德現(xiàn)狀。 - It's difficult to see random sampling method in a sentence. 用random sampling method造句挺難的
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