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概率和统计是高中数学中的新增内容,是考查学生数学运用能力的有效载体.近年来的高考试题表明:在应用题的考查方面,它基本上取代了传统的数学应用题.高考中一般考查一个小题或一个大题,难度中等偏下,对文科考生来说,侧重于考查抽样方法和对总体分布的估计,而对于理科考生来说,则侧重于考查离散性随机变量的分布列和数学期望以及正态分布的运用.下面以2006年高考试题为例说明如下,供参考.
Probability and statistics are new content in high school mathematics, and are effective carriers for examining students’ mathematical abilities. In recent years, the high test questions have shown that: in the examination of applied questions, it basically replaces the traditional mathematical application problems. Examines a short title or a big question, which is moderately difficult. For liberal arts examiners, it focuses on the examination of sampling methods and estimates of the overall distribution. For science candidates, it focuses on the distribution of discrete random variables. The use of mathematics expectations and the use of normal distribution. The following is an example of 2006 exam questions as an example for reference.