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一、频率与概率的概念频率:在考察可能事件发生的试验中,可能事件发生的次数与试验总次数的比值叫做可能事件发生的频率。频率是一个比值,即频率
First, the concept of frequency and probability Frequency: In examining the possible occurrence of the test, the number of possible events and the total number of trials called the frequency of possible events. Frequency is a ratio, the frequency