设计：分层整群抽样调查。
设计：抽样调查。单位：山东省聊城大学教育科学学院心理学实验室。
DESIGN: Sampled investigation SETTING: the Laboratory of Psychology of the College of Education Science of Shandong Liaocheng University.
设计：简单随机抽样调查。
设计：随机抽样调查。
本文以全国基本单位普查资料为依托，对规模以下批发和零售贸易业抽样调查的抽样框进行设计，设计的思路和方法对其他小企业的抽样调查也具有一定的参考价值。
According to the date of basic units census, this paper designs the sampling frame about the sampling survey of enterprises below designated size in wholesale and retail sale trades.
为了减轻麦蚜虫抽样调查的难度，提高调查的效率和准确性，设计了一套基于计算机视觉技术的蚜虫数量自动计数的新方法。
To improve efficiency and accuracy of the current estimation system for cereal aphids, a novel method based on computer vision technology was introduced.
包括市场调查与预测的基础概念、抽样调查方法、问卷设计技术、市场资料的收集方法、市场预测技术及市场调查与预测报告的撰写方法等。
The course includes the concept of market investigation and market prediction, sampling, questionnaire design, market data collection, market prediction method, and the final report writing.
包括市场调查与预测的基础概念、抽样调查方法、问卷设计技术、市场资料的收集方法、市场预测技术及市场调查与预测报告的撰写方法等。
The course includes the concept of market investigation and market prediction, sampling, questionnaire design, market data collection, market prediction method, and the final report writing.
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