在实际生活中,有许多问题的概率都难以精确计算,例如,男、女孩出生概率,英语字母的使用概率,遭受意外伤害的概率等.因此,人们往往通过做大量的重复试验或统计,用事件发生的频率去估计概率.那么,用频率估计概率合理吗?这样估计的理论依据是什么?设A是一个随机事件,若进行了n次重复试验,记m_A为事件A出现的次数,则(m_A)/n为事件A出现的频 In real life, the probability of many problems can not be accurately calculated, for example, the probability of male and female births, the probability of using English letters, the probability of suffering accidental injury, etc. Therefore, people often do a lot of duplicates or statistics by using Then the probability of frequency estimation is reasonable? What is the theoretical basis for such estimation? Let A be a random event, and if n times repeated tests, remember that m_A is the number of occurrences of event A, then (m_A) / n is the frequency of occurrence of event A