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二项分布与几何分布是高三数学新教材第一章的重要内容,二项分布的特点是某一事件,在n次独立重复实验中,以事件发生的次数ξ为随机变量;而几何分布的特点是某一事件,在n次独立重复实验中,以事件第一次发生时所作试验的次数ξ为随机变量.二项分布与几何分布很容易混淆,它们貌似相同,但其本质意义明显不同.为了能更好地区分、理解和掌握其概念的本质,以下列出其特点进行对比和辨析.
Binomial distribution and geometric distribution are the important contents of the first chapter of the third grade mathematics new textbook. The binomial distribution is characterized by an event. In n independent repeated experiments, the number of occurrences ξ is a random variable; while the geometric distribution Characterized by an event, in n independent experiments, the number of experiments made when events first occurred ξ is a random variable.The binomial distribution and the geometric distribution are easy to be confused, they appear to be the same, but their essential meanings are obviously different In order to better distinguish, understand and grasp the essence of its concept, the following lists its characteristics for comparison and discrimination.