基本概念 样本空间: 随机试验E的所有可能结果组成的集合, 为E的样本空间, 记为S 随机事件: E的样本空间S的子集为E的随机事件, 简称事件, 由一个样本点组成的单点集, 称为基本事件 对立事件/逆事件: 若A并B=S, 且A交B=空, 则称A与B互为逆事件, A与B互为对立事件. A上面加一横即A的逆事件 频率: 在相同的条件下进行了n次试验, 事件A发生的次数为A的频数, 与n的比值成为A的频率 概率: 设E为随机试验, S是E的样本空间, 对于E的每一个事件A赋予一个实数, 记为P(A…

Basics of Probability Probability density function (pdf). Let X be a continuous random variable. Then a probability distribution or probability density function (pdf) of X is a function f(x) such that any two numbers a and b with That is, the probabi…

目录 Chapter 1 Measure spaces Chapter 2 Integration Chapter 3 Spaces of integrable functions Chapter 4 Hilbert spaces Chapter 5 Fourier series Chapter 6 Operations on measures Chapter 7 The fundamental theorem of the integral calculus Chapter 8 Measura…

Probability Concepts Unconditional probability and Conditional Probability Unconditional Probability (a.k.a. marginal probability): refer to the probability off an event regardless of the past or future occurrence of other events. Conditional Probabi…

title: [概率论]1-1:概率定义(Definition of Probability) categories: Mathematic Probability keywords: Sample Space 样本空间 Finite Sample Space 有限样本空间 Kolmogorov axioms(Probability Axioms) 柯氏公理 Disjointed Events 不想交事件 Definition of Probability 概率定义 Properties of…

6.4 Assessing Normality; Normal Probability Plots The normal probability plot is a graphical technique to identify substantive departures from normality 即如果sample满足正态分布,则1-12位置上对应的y值应该为这一列上的值 Noted: 之前统计正态分布时需要由直方图过渡到正态曲线,横坐标是每一类,在这里是样本本身. 由table3一一对…

Case Study The case study Physicians' Reactions sought to determine whether physicians spend less time with obese patients. Physicians were sampled randomly and each was shown a chart of a patient complaining of a migraine headache. They were then as…

转载来自: http://www.infocool.net/kb/PHP/201607/168683.html a 函数 说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_getenv 获取 Apache subprocess_env 变量 apache_get_mo…

https://www.quora.com/How-do-I-learn-machine-learning-1?redirected_qid=6578644   How Can I Learn X? Learning Machine Learning Learning About Computer Science Educational Resources Advice Artificial Intelligence How-to Question Learning New Things Lea…

##Advice for Applying Machine Learning Applying machine learning in practice is not always straightforward. In this module, we share best practices for applying machine learning in practice, and discuss the best ways to evaluate performance of the le…