概率与统计是近代数学的重要内容,也是近年来高考的重点和热点,且有逐年升温之势.这部分内容相对独立,计算性较强,试题源于教材,是基础知识的重组与延伸,从而立意新、背景新、设计巧妙、贴近生活,思维方法独特,属于中档或中档偏难型试.题.本文归纳总结了概率问题的常见题型及求解策略,并举例说明,旨在帮助大家熟悉题型特征,掌握解题方法.一、古典概型问题古典概型的两个特征为有限性和等可能性,利用这两个特征判断随机事件是 Probability and Statistics is an important part of modern mathematics, but also the focus of college entrance examination in recent years and hot spots, and there is a trend of warming year after year .This part of the content is relatively independent, computational, questions from the textbook, is the reorganization and extension of basic knowledge, So that the new ideas, new backgrounds, cleverly designed, close to life, unique thinking, belonging to the mid-range or mid-range difficult test .This paper summarizes the common problems of probability and solving strategies, and an example to help everyone Familiar with the characteristics of the problem, mastered the problem-solving method.A classical problem Two classical features of the classical characteristics of the finite and equal possibility, the use of these two features to determine the random event is