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概率是高中教材的重要内容,应用非常广泛,每年高考都占有一席之地,下面就高考中与概率有关的问题的解题思路作一归纳,供大家参考。一、离散型随机变量的概率分布和数学期望例1:(2003年理科高考题)A,B两个代表队进行乒乓球对抗赛,每队三名队员。A队队员是A1,A2,A3,B队队员是B1,B2,B3。按以往多次比赛的统计,对阵队员之间胜负概率如下:
Probability is an important part of high school teaching materials, a very wide range of applications, each year have a place in the college entrance examination, the following college entrance examination and probabilistic problems to solve the problem of thinking to make a summary for your reference. First, the probability distribution of discrete random variables and mathematical expectations Example 1: (2003 Science Entrance Examination) A, B two table tennis tournament competition, each team of three players. A team members are A1, A2, A3, B team members are B1, B2, B3. According to the statistics of many matches in the past, the probability of winning and losing against team members is as follows: