平均数、众数、中位数都是描述一组数据的集中趋势的特征值.平均数的大小与一组数据里的每一个数据都有关系;众数着眼于对各个数据出现的频数的考察,其大小只与这组数据中的部分数据有关;中位数与数据的排列位置有关系.对平均数、众数、中位数的分类讨论,对实际问题的解决起着良好的导向作用.在数据分析的相关习题中,如果注意分类讨论思想的应用,可以达到提升思维、成功解题的目 The mean, mode, and median are eigenvalues ​​that describe the central tendency of a set of data.The size of the mean is related to every piece of data in a set of data; the modalities look at the number of occurrences of each data The size of the data is only related to the part of the data in this set of data; the median is related to the location of the data; the classification of the mean, mode, and median is discussed, which is a good guide to solving practical problems Role in the data analysis of the relevant exercises, if you pay attention to the application of the classification of thinking can be achieved to enhance thinking, the problem of successful solution