论文部分内容阅读
要学好概率,首先必须准确理解和把握概率论的有关概念,掌握其本质内涵,否则会产生这样或那样的种种错误.兹分类例说如下.类型1不能区分“非等可能”与“等可能”例1抛掷两枚骰子,求所得的点数之和为6的概率.错解抛掷两枚骰子,出现的点数之和为2,3,4,…12共11种基本事件,故所求概率P=1/11.分析以上11种基本事件并不是等可能的.如点数为2的只有(1,1),而点数为6的
To learn the probability, we must first accurately understand and grasp the concept of probability theory, grasp the essence of its connotation, otherwise it will produce one kind or another kind of error .It is classified as follows. Type 1 can not distinguish “Possible” Example 1 The probability of throwing two dice and finding the sum of the points is 6. The total number of points that are mispitled and dumped is 2, 3, 4, ... 12 There are 11 basic events, Therefore, the probability of seeking P = 1 / 11. Analysis of the above 11 kinds of basic events is not possible such as the number of points for only 2 (1,1), while the number of points 6