概率中的乘车问题涉及古典概率、条件概率、几何概型及数学期望等方面的内容,内涵丰富,方法灵活多变,能够体现数学的本质,值得细细品味.以下就是这方面的一些例子.例1一个公共汽车站有3条不同线路的公交车经过,分别为1路车、2路车、3路车.某个人想坐2路车,现在看见来了一辆车,但不确定是哪路公交车,问是2路车的概率有多大?解由题意并结合古典概率的定义,可以求出是2路车的概率为1/3. The problem of riding in probability involves the contents of classical probability, conditional probability, geometric generalization and mathematical expectation, etc. It is rich in connotation and flexible in method, which can reflect the essence of mathematics and is worth savoring. The following are some examples in this regard Example 1 A bus stop with 3 different routes passing by bus 1, bus 2, bus 3, and somebody wants to take a 2-car and now sees a car but not sure Which bus is the bus, asking how likely is the 2-way bus? Solution by the title and the classical definition of probability, you can find the probability of a 2-way car is 1/3.