论文部分内容阅读
一、考查统计学中的四个基本概念例7 某省有7万名学生参加初中毕业会考,要想了解这7万名学生的数学成绩,从中抽取了1000名考生的数学成绩进行统计分析,以下说法正确的是(). A.这1000名考生是总体的一个样本 B.每位考生的数学成绩是个体 C.7万名考生是总体 D.1000名考生是样本容量分析本题考察学生对总体、个体、样本、样本容量这四个概念的理解情况.解答这类题的关键是弄清这些概念的本质。总体、个体、样本都指的是
First, examine four basic concepts in statistics. Example 7 There are 70,000 students in a province who participate in junior high school graduation exams. To understand the math achievement of the 70,000 students, a mathematical analysis of 1000 candidates was performed for statistical analysis. The following statement is correct (). A. These 1000 candidates are a sample of the overall B. Each candidate’s math score is individual C. 70000 candidates are the overall D.1000 candidates are sample size analysis of this topic. The understanding of the four concepts of population, individual, sample, and sample size. The key to answering such questions is to clarify the nature of these concepts. The overall, individual, and sample all refer to