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在中考试卷中.与数据的收集、整理与分析有关的题目,通常是主观题、客观题各一道,难度中等,分值约占8%.选择题或填空题重在考查统计中的基本概念(总体、个体、样本、样本容量等)以及描述数据集中趋势的特征数(平均数、中位数、众数等)和描述数据波动大小的特征数(方差、标准差等)的正确理解和运用.解答题具有一定的综合性,多为含有尚待补全的统计图表的题目.求解时要善于从图表或其他的题设中,寻求同一条件的不同的表达形式,
In the examination paper, the topics related to the collection, collation and analysis of data are usually subjective questions, objective questions, moderate difficulty, with a score of about 8%. Multiple choice or blank filling in the basic concepts of statistics (Such as population, individual, sample, sample size, etc.) as well as the number of features (mean, median, mode, etc.) describing trends in the data set and the number of features (variance, standard deviation, etc.) describing the magnitude of the data fluctuations Use the answer questions have a certain degree of synthesis, mostly containing the subject of the statistical charts yet to be completed.Solution should be good at from the chart or other problems, to find different expressions of the same conditions,