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概率统计是新课标高中数学内容中的一个亮点,它替代了传统的数学应用题.然而对于概率的计算,许多同学都存在不少误区,究其原因,除了许多概率的计算需要用到排列组合的知识,读清楚题目表达的实际含意外,还需要对一些概率的概念的本质有一个清晰的把握.本文通过一些概率中的易错典型例题对概率易错问题进行辨析,希望能够让学生正确地理解并掌握运用,同时对教师的课堂教学也能起到一定的帮助作用.一、概率中的顺序问题
Probability and statistics is a bright spot in the mathematics content of the new curriculum standard high school, which replaces the traditional mathematics application problems.However, many students have many misunderstandings about the probability calculation, the reason, except that many probability calculations need to be arranged Combination of knowledge, read the clear expression of the actual meaning of the accident, but also need some probability of the nature of the concept of a clear grasp.This paper by some of the probability of error-prone typical examples of the probability of error-prone discrimination, hoping to allow students Correctly understand and master the use of teaching at the same time teachers can also play a helping role. First, the probability of the order problem