Alex_McAvoy的博客

Problem DescriptionSometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party where there are 23 people including you. W...

【事件与频率】1.基本概念1）随机试验：可在相同条件下重复进行，每次试验的结果可以不止一个且能事先明确所有结果，进行一次试验前并不能确定哪一个结果出现的试验2）样本空间：记作 S，某个随机试验所有可能的结果的集合，其元素即为试验的每个结果（样本点）3）基本事件：由一个样本点组成的单个元素的集合2.事件1）和事件：记作或 A+B，当且仅当事件 A 和事件 B 至少一个发生...

Problem DescriptionYou are in a reality show, and the show is way too real that they threw into an island. Only two kinds of animals are in the island, the tigers and the deer. Though unfortunate b...

Problem DescriptionBob has a not even coin, every time he tosses the coin, the probability that the coin's front face up is).The question is, when Bob tosses the coinkktimes, what's the probab...

Problem DescriptionConsider a system which is described at any time as being in one of a set ofNdistinct states,1,2,3,...,N. We denote the time instants associated with state changes ast = 1,2,...