为了科学地反映已发生的现象,或预测未发生的现象,人们想到了利用统计数据去解决问题的方法.统计学是研究数据的收集、整理、计算和分析等的学科,它是数学中的应用价值非常高的一个分支.每一个统计过程都是从收集数据开始的,收集到的这些数据叫做原始数据.虽然原始数据包含了关于研究对象的大量信息,但是这些信息往往是初级的、 In order to scientifically reflect the phenomenon that has occurred, or to predict the phenomenon that has not occurred, people think of methods that use statistical data to solve problems. Statistics is a discipline that collects, collates, calculates, and analyzes research data, and it is in mathematics. A branch with a very high application value. Each statistical process begins with the collection of data, which is called the original data. Although the original data contains a large amount of information about the research object, but this information is often primary,