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统计是初中数学的重要内容,也是与高中知识联系密切的一部分,因此,近几年各省市对这部分内容考查力度加大,题型由单一考查平均数、众数、中位数、方差、极差、标准差等概念的选择题、填空题转向为分值较高的解答题和应用题.下面就中考试题中的这部分内容的试题特点作一些简要的分析,以帮助同学们做好这部分内容的复习.一、“统计”的中考内容要求1.能通过收集、整理、描述、分析数据的过程作出合理的决策,了解总体、个体、样本的概念,了解数据的
Statistics are an important part of junior high school mathematics and a part of high school knowledge. Therefore, in recent years, provinces and cities have made greater efforts to examine this part of the content. The types of questions are determined by a single examination of the average, mode, median, variance, Very poor, standard deviation and other concepts of multiple-choice questions, fill in the blank questions turned to a higher score of the answer questions and application questions below in the middle of the exam questions in this part of the characteristics of the questions to make some brief analysis to help students do a good job This part of the review. A, “Statistics ” in the exam content requirements 1. Through the process of collecting, sorting, describing, analyzing data to make reasonable decisions, understand the concept of population, individual, sample, understand the data