论文部分内容阅读
高中数学新增内容中 ,以概率与统计较难学习 ,而随机变量分布列是概率与统计中一个难点。在讲清概念的基础上 ,需配备一定习题 ,加强一些必要的练习。1 选择、填空题1 设 ξ是一个离散随机变量 ,则下列可能不是 ξ的概率分布的是 ( )(Ａ) 0 .1,0 .2 ,0 .3 ,0 .4(Ｂ) 0 ,0
Among the new contents of high school mathematics, it is difficult to learn with probability and statistics, and the distribution of random variables is a difficulty in statistics and statistics. On the basis of clarifying concepts, it is necessary to equip certain exercises and strengthen some necessary exercises. 1 Select and fill in the question 1 Let ξ be a discrete random variable, then the probability distribution of the following may not be ((A) 0 .1, 0.2, 0.3, 0