抽样调查是一种应用广泛、行之有效的统计推断方法,它源于人们通过对部分的分析认识,进而推广到对整体的认识,即用样本估计总体。根据义务教育数学课程标准的阐述,初中阶段统计教学的定位是:“要求学生体会抽样的必要性以及用 Sampling survey is a widely used and effective statistical inference method, which stems from the people through the analysis of the understanding of the part, and then extended to the overall understanding that the sample is used to estimate the overall. According to the compulsory education mathematics curriculum standard description, junior high school statistics teaching orientation is: ”Require students to understand the necessity of sampling and use