随着课程与考试的不断改革,在近几年的数学高考中概率问题越来越凸现出它的重要位置,成为高考命题的一个新视角。古典概型与几何概型是教学中的重点内容。明确概率问题中的等可能性是研究古典概型与几何概型的基础与关键。 With the continuous reform of courses and examinations, in recent years, the probability of mathematics college entrance examination more and more highlights its important position, a proposition of college entrance examination to a new perspective. Classical patterns and geometric patterns are the focus of teaching. The possibility of clarifying the probabilities of probabilities is the basis and key to the study of classical probabilities and geometrical probabilities.