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考点1:随机抽样命题走向高考主要考查考生对三种抽样方法的识别以及简单的计算问题,以基本概念和基本方法为主,一般为容易题,题型以选择题和填空题为主.重点关注注意三种抽样方法的内在联系,理解随机抽样的必要性和重要性,会用简单随机抽样法从整体中抽取样本,了解分层抽样法和系统抽样法.试题预测某公司在甲、乙、丙、丁四个地区分别有150个、120个、180个、150个销售点.公司为了
Test point 1: Random sampling proposition to college entrance examination Mainly examine the candidates of the three sampling methods of identification and simple calculation of the basic concepts and basic methods, usually easy questions, questions to multiple choice and fill in the blank questions. Pay attention to the intrinsic relationship between the three sampling methods, understand the necessity and importance of random sampling, will use a simple random sampling method to extract samples from the whole, understand the stratified sampling method and system sampling method. , C, D four regions were 150, 120, 180, 150 points of sale. Companies in order to