正态分布在概率和统计中占有重要的地位,在其进入高中教材的前几年,高考试题中很少考查到这一知识点.近几年,这一问题越来越受到命题专家的青睐.本文拟以近年来的高考题为例,就解决正态分布问题的常规思想予以总结,以期对高考的复习备考有所帮助.1.对称的思想【例1】(2007年浙? Normal distribution occupies an important position in probability and statistics. In the first few years of entering high school textbooks, this knowledge point was rarely examined in high test questions. In recent years, this problem has become more and more popular among proposition experts. This article intends to use the recent college entrance exam questions as an example to summarize the conventional thinking of solving the problem of normal distribution, with a view to helping the preparation of the college entrance examination. Preparation of Symmetrical Ideas (Example 1) (Zhejiang, China, 2007)