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统计是数学的一个重要分支,它研究的是如何收集、整理、分析由实验或调查所得到的数据并进行科学推断的原理和方法。下面对统计的初步知识作一简单介绍。一、统计工作的一般步骤1.确定统计对象,明确统计的目的和任务;2.选定调查方法,收集对象的有关资料和数据;3.对收集的资料和数据加以整理,可绘制统计图表;4.分析研究整理后的数据,揭示被研究对象的规律性,进行科学预测.二、收集资料和数据的方法
Statistics is an important branch of mathematics. It studies the principles and methods of how to collect, sort and analyze the data obtained from experiments or surveys and make scientific inferences. The following is a brief introduction to the preliminary knowledge of statistics. First, the general steps of statistical work 1. Determine the statistical object, clear the purpose and task of statistics; 2. Select the survey method, collect the relevant data and data of the object; 3. Organize the collected data and data, can draw statistical charts 4. Analyze and study the data after the consolidation, reveal the regularity of the subjects to be studied, and conduct scientific predictions. Second, the method of collecting data and data