求等可能事件的概率时,经常遇到是否有序还是无序的问题,根据学生暴露出的一些问题,以及学生思维方式的形成,归纳为以下几点.一、抓住基本事件的确定基本事件的确定要符合等可能性.按照定义,一次实验中的每一个结果作为一个基本事件,就是为了保证每一个基本事件出现的机会均等. When seeking the probability of possible events, we often encounter the problem of whether or not there is order or disorder. According to the problems exposed by students and the formation of students’ thinking patterns, they are summarized as the following points. I. Grab the basic events to determine the basic The determination of the event must meet the probability. By definition, each of the results of an experiment is a basic event, which is to guarantee that every basic event has equal opportunities.