高中数学新教材(人教版试验修订本)第十章所介绍的等可能事件的概率,即是概率论中的古典概型的概率.概率古典定义如下:对于某个随机试验,如果有且仅有n个基本事件(有限性),且每一基本事件发生的可能性是相同的(等可能性),则当事件A中包含m个基本事件时,事件A的概率P(A)=m/n. 古典概率的计算,在中学概率论中占有重要的地位,只有熟悉古典概型的概率的计算, The probability of such possible events as described in Chapter 10 of the New High School Mathematics Textbook (Revised Edition of PiP) is the probability of the classical probability model in probability theory. The classical definition of probability is as follows: for a random experiment, if there is There are only n basic events (finiteness), and the probability of occurrence of each elementary event is the same (such as possibility), then when event A contains m basic events, the probability of event A P(A) = m/n. Calculation of classical probability occupies an important position in middle school probability theory, and only the probability of familiarity with the classical probability model is calculated.