“可能性”问题实质上是研究随机现象的统计规律.解题关键在于能够体会不确定现象的特点,树立一种随机观念.现以中考题为例,解析如下.一、事件的分类生活中的事件都包含着两个方面:确定性和不确定性.确定事件包括必然事件和不可能事件.无论确定事件还是不确定事件,都是就事件发 The “probability” problem is essentially the study of the statistical law of random phenomena. The key to solving the problem lies in the ability to understand the characteristics of the phenomenon of uncertainty, and establish a random concept. Now take the exam questions as an example, the analysis is as follows. First, the classification of events in life The events include two aspects: certainty and uncertainty. The determination of events includes inevitable events and impossible events. Regardless of the determined events or the uncertain events, they are all related to the events.