Statistics is the core course of economics and management specialty in higher vocational colleges. In order to meet the requirements of curriculum construction and textbook updating, we have organized teachers who have been engaged in statistics teaching for many years to compile this book. As far as the subject characteristics of statistics are concerned, statistics is a methodological subject that collects, sorts out, analyzes and explains statistical data, and its purpose is to explore the inherent quantitative regularity of statistical data. With the rapid development of China's economy and the continuous improvement of China's market economy system, it is necessary to obtain all kinds of data and information accurately and timely, and analyze these related data and information, whether it is macro-national economic regulation and management or micro-enterprise production and operation management.

Therefore, as a data processing and analysis technology, statistical methods will certainly play a greater role. In the process of compiling this book, according to the requirements of the syllabus and teaching practice, on the basis of summing up many years of statistical teaching experience and referring to a large number of relevant materials at home and abroad, it was completed by a number of experienced teachers collectively. In the overall planning of this book, the content system of statistics is constructed according to the viewpoint of "big statistics", which realizes the integration of statistical theories and related statistical methods and puts the general statistical theories and methods into practice. In terms of writing ideas, this book focuses on the collection, collation and analysis of statistical data, highlighting the specific application of statistics in actual national economic life; In terms of writing methods, this book strives to be concise, simple, practical and novel. After each project, there are thinking exercises, which are closely combined with the content of teaching materials to strengthen the training of students' statistical thinking and basic skills. In order to cooperate with the teaching of this book, the publishing house website () provides exercises and reference answers for various projects.

This book is edited by Wang Chao who has been engaged in statistics teaching for many years, with Wang Yonggang as the second editor, Liu Dongmei, Zhang Xiuqing, Xu Mingchang, Wang Nina, Yang Faling, Mao Haizhou, Luo and Chen Hanping as deputy editors, and Guo Peijun, Yin Qingjie, Cai Huodi and Liang Danying also participated in the compilation of this book. The division of labor in compiling this book is as follows: Wang Chao's compilation projects 5 and 6; Projects I and IX prepared by Wang Yonggang; Liu Dongmei compiled items 7 and 8; Projects III and IV prepared by Zhang Xiuqing; Xu Mingchang wrote Project 2, and finally Wang Chao was responsible for the overall compilation, revision and finalization of the book.

Due to the limitation of the editor's level and the rush of time, there are inevitably omissions or mistakes in the book. Please consult with experts and readers in the field so that we can further revise and improve it.