| 用概率树图法求解事件发生的概率 |
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| 引用本文： | 王荣.用概率树图法求解事件发生的概率[J].天津职业院校联合学报,2004,6(5):18-20. |
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| 作者姓名： | 王荣 |
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| 作者单位： | 天津房管局职工大学,天津市,300070 |
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| 摘 要： | 求事件发生的概率时,首先按事件先后发生的顺序画出概率树图,在概率树图上注明各个事件发生的概率,然后沿事件的终点重返始点,再利用概率的乘法公式和概率的可加性,即可求得事件发生的概率.
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| 关 键 词： | 概率论 概率树图 概率树图法 |
| 文章编号： | 1009-2498(2004)05-0018-03 |
| 修稿时间： | 2004年4月25日 |
Using Probability Tree and Graph Method to Solve the Probability of Event |
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| WANG Rong.Using Probability Tree and Graph Method to Solve the Probability of Event[J].Journal of Tianjin Vocational Institutes,2004,6(5):18-20. |
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| Authors: | WANG Rong |
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| Abstract: | This article presents a method to solve the probability of event named probability tree and graph method. First, draw the probability tree and graph according to the sequence of the events, then mark the probability of every event on the graph, and then go back from the end point to the start point, at last the probability can be solved by using the multiplication formula and the addible attribute of the probability. |
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| Keywords: | probability theory probability tree and graph probability tree and graph method |
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