文档介绍：管理统计学 Statistics In Management
西南交通大学经济管理学院
王建琼刁明碧
2001年6月
第一部分预备知识
Primary Knowledge
第1章概率论
Basic Probability
Probability Distributions
本章概要
Basic Probability Concepts:
Sample Spaces and Events, Simple
Probability, and Joint Probability(联合概率)。
Conditional Probability(条件概率)
Bayesian Theorem(贝叶斯定理)
The Probability of a Discrete Random Variable
Binomial, Poisson, and Hypergeometric Distributions
Covariance(协方差) and its Applications in Finance
Sample Spaces
(样本空间)
Collection of all Possible es
. All 6 faces of a die:
. All 52 cards of a bridge deck:
Events(事件)
Simple Event: e from a Sample Space
with 1 Characteristic
. A Red Card from a deck of cards.
Joint pound Event: Involves 2 es
Simultaneously(同时发生称为“Joint”)
. An Ace which is also a Red Card from a deck of cards.
An Ace given that it is a Red Card.
Visualizing Events(形象化事件)
Contingency Tables(列联表)
Tree Diagrams
(树状图)
Ace Not Ace Total
Red 2 24 26
Black 2 24 26
Total 4 48 52
Simple Events(简单事件)
The Event of a Happy Face
There are 5 happy faces in this collection of 18 objects
Joint Events(联合事件- - -交)
The Event of a Happy Face AND Light Colored
3 Happy Faces which are light in color
12 Items, 5 happy faces and 7 other light objects
Compound Events(复合事件---并)
The Event of Happy Face OR Light Colored