概率论中分布函数教学方法探索

The exploration of teaching method to the probability distribution function

概率论中随机变量的分布函数这部分内容,是教学中的难点。教师难教,学生难学。尤其是学生在求解分布函数时感到无从下手。基于此,作者通过形象的事例———收集面粉———解释了分布函数的含义及求解方法,使得本来抽象难懂的定义,变得生动有趣,极易掌握。

The distribution function of the random variable in probability theory is difficult .Especially for students,when they are solving the distribution function .They don ’ t know how to start .Therefore, by introduction of “Collection flour”, the definition, property and method of solving were explained .The definition which was abstract and difficult becomes vivid and interesting and easy to grasp .