摘要
统计作为一门学科,它的基本概念的表述是简明的,然而却是重要的;其内涵是明确的,然而外延却是丰富的.不能准确把握概念的实质,往往成为学习该学科的难点,探究和辨析概念的特性和条件是解决难点的钥匙.
Statistics, as a science has a simple and clear, and at the some time, importantexpression of its fundamental concept; it has a unequirocal intension, and a plentifulextension. Not knowing how to grasp the essence of its concept, has become difficulty in thestudy of this subject, and the key of overcoming this difficulty is to explore and discriminatethe special property and condition of the concept.
关键词
统计学
调和平均数
序时平均数特性
辨析
statistics
mediation average value
journal average value
special property
discrimination
