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古典概型所研究的是最简单的随机试验问题.这种随机试验问题有如下三个特征:(1)试验的结果只有有限个,且每个结果发生的可能性相等;(2)试验的各种结果彼此间互斥;(3)试验的各种结果发生的可能性(即概率)之和等于1.
Classical models study the simplest random test problem. The random test problem has the following three characteristics: (1) There are only a limited number of test results, and the likelihood of each result is equal; (2) The test The results are mutually exclusive of each other; (3) The sum of the likelihood of occurrence of the various results of the experiment (ie, the probability) is equal to 1.