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概率问题与生活实际密切相连,主要涉及古典概率、互斥事件和的概率、相互独立事件积的概率等。古典概型的重点是理解古典概型的特征:实验结果的有限性和每一个结果出现的等可能性;n次独立重复试验的重点是正确领会n次重复与独立试验两个方面,特别是对“独立”的正确把握。求解概率问题,我们应合理运用“加、减、乘、除”的策略,下面从运算角度看概率问题,研究解决概率问题的对策。
Probability problems are closely linked with the reality of life, mainly involving the probability of classical probability, the probability of mutually exclusive events and the probability of independent event events. The focus of the classical profile is to understand the characteristics of the classical profile: the limits of the experimental results and the likelihood of each of the results appearing; the focus of the n independent trials is the correct understanding of n repetitions and independent trials, in particular Correct understanding of “independence”. To solve the problem of probability, we should make rational use of the strategy of “addition, subtraction, multiplication and division”. From the perspective of operation, we will study the problem of probability and study the solution to the problem of probability.