一、引言统计学是一门搜集、分析、表述和解释数据的方法论学科,随着当前科技水平和社会经济的不断发展,统计已成为管理学、经济学、物理、生物、医学、人口学、社会学等实质性学科不可缺少的定量分析手段。对于非统计专业的经济、管理类学生来说, I. INTRODUCTION Statistics is a methodological discipline that collects, analyzes, expresses and interprets data. With the continuous development of science and technology and social economy, statistics has become a methodology of management, economics, physics, biology, medicine, demography, Sociology and other substantive disciplines indispensable quantitative analysis. For non-statistical major economy, management students,