The From The Economist print edition One of the world's main currencies is heading for a fall Get article background THE world has a new international currency: frequent-flyer miles. Launched exactly 21 years ago, they are a lot like money. Collectors check their mileage statements as

The Onion Housemates Reject Third-Roommate Debt-Relief Plan Page of 3 Wrap up the semester with savings. the ONION' a.v. club store subscriptions books personals ONION PREMIUM: JOIN LOGIN HELP NEWSLETTERS CONTESTS

The title of this paper is a play on that of an admirable recent book by the philosopher Daniel Dennett, Darwin's Dangerous Idea: Evolution and the Meanings of Life(1995). Dennett's book is an examination of the reasons why so many intellectuals remain hostile to the idea of evolution through

Home What's New| Site Map Site Index International Monetary Fund Search About the IMF IMF at Work IMF Finances Country Info News Publications The IMF Strikes Back Espaniol Francais By Kenneth Rogoff Economic Counsellor and Director of the Research Department

Nagging doubts about the benefits of globalisation, and a look at the evidence WHEN David Ricardo, a 19th-century economist, criticised England's protectionist corn laws, he based his argument on the notion of \comparative costs\,these days called comparative advantage The idea, in brief, is that all countries can raise their living standards through specialisation and trade. Even if one country

Title Game Theories http://walrusmagazine.com/article. pl?sid=04/05/06/1929205 On-line fantasy games have booming economies and citizens who love their political systems. Are these virtual worlds the best place to study the real one?

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

Statistical Thinking and Management Descriptive versus Inferential Statistics Types of Data and their Sources Types of Sampling Methods Types of Survey Errors

一、基本抽样问题 1 基本概念 2 制定抽样计划的步骤 3 抽样误差与非抽样误差 4 概率抽样方法 5 非概率抽样方法

一、集中趋势(Central Tendency) 1, What is the most typical value? The Average: typical value for quantitative data The Weighted Average: Adjusting for importance The Median: typical value for quantitative and ordinal data The Mode: typical value even for nominal data 2, What percentile is it? Extremes, Quartiles, and Box Plots The Cumulative distribution function displays the percentiles