摘要
基于古典概率计算这个概率论学科教学中碰到的首个重点与难点,提出了突出重点,化解难点的若干简化方法。将古典概率的计算明确分解为两个步骤完成:第一步是根据欲求概率的事件A的本质特征选取适当的样本空间Ω,使它满足"有限、等可能"且AΩ;第二步是计算Ω与A所包含的样本点数nΩ与mA,强调应当重视第一步。
This article put forward some simplified method of calculating classical probability that en-countered in the probability teaching. Realization of this method will be followed hy two steps-First, choose the sample space Ω according to the essential characteristic of event A for which probability will be calculated let the sample space satisfy the condition of ＂limited. equiprobable＂ and A∈Ω; second, calculate the sample points numbers and nΩ and mΩ included in the Ω and A.
出处
《数理医药学杂志》
2008年第5期523-527,共5页
Journal of Mathematical Medicine
关键词
样本点
样本空间
随机事件
古典概型
古典概率
sample points
sample space
random event
classical probability model
classical probability
