摘要
在古典概型中,全概率公式既是重点也是难点.要使学生对属于全概率公式求解的题目做出准确的判断,需要正确地进行分析.通过对典型题目的分析,总结出求解此类问题的方法和解题步骤,并给出了全概率公式的记忆方法.
In classical probability, the formula of total probability is the key point of both difficulty and priority. The author hence draws a procedure of correct analysis leading to the solution of the problems, and argue. for ways of memory of total probability.
出处
《石家庄职业技术学院学报》
2007年第4期30-31,共2页
Journal of Shijiazhuang College of Applied Technology
关键词
全概率公式
乘法公式
完备事件组
complete probability formula
multiplication formula
complete incident group
