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Image 
Title 
Description 
27 

Different
ways of
measuring the Consumer Price Index (CPI) 
A series of
blog posts about the
calculation and properties of index numbers, which are used to derive
various economic and financial statistics such as the CPI (consumer
price index).

26 

Index
Numbers 
25 

TANAGRA:
A free datamining program 
A review for the free data mining software,
TANAGRA. 
24 

The
Galton Box 
The Galton Box was invented by Sir Francis Galton
in the 19th
century, to demonstrate the central limit theorem and the binomial and
normal distributions. 
23 

How
the world
separates its digits 
A table showing the style(s) that each country
uses to separate the
digits of its large numbers ( e.g. 1,000,000 10,00,000
10.000.000
etc). 
22 

How
the world
separates its decimals 
A thematic map showing which countries denote a
decimal separation
with a point, and which denote a decimal separation with a comma. 
21 

PSPP:
A free
alternative to SPSS 
A review for PSPP, a free statistical software
that is based on SPSS. 
20 

Utility
Functions 

19 

Social
Welfare Fuctions 

18 

Crossvalidation 
A series of
three blog posts, each outlining the steps taken to perform a
particular statistical simulation technique. 
17 

Bootstrapping 
16 

Monte
Carlo Methods 
15 

Total
Least Squares 
Total
Least Squares is an alternative regression modelling technique to the
conventional Ordinary Least Squares (OLS). It involves
minimising
the sum of the squared diagonal residuals, instead of the sum of the
squared vertical residuals. 
14 

Prosecutor’s
Fallacy 
An
explanation of various statistical fallacies that can and have resulted
in miscarriages of justice. The Sally Clark Case (United
Kingdom)
is used as an example. 
13 

The
German Tank
Problem 
A
simple formula the Western Allies used during World War II,
that predicted with great accuracy, the number of German tanks
being produced, based on the serial numbers of captured or destroyed
German tanks. 
12 

Restimators 
A series of
four blog posts about alternatives to the OLS regression modelling
technique, that are robust to departures from the normality assumption.

11 

Lestimators 
10 

Mestimators 
9 

LAD:
An Alternative to OLS 
8 

Gambler’s
Fallacy 
Gambler’s fallacy is a type of faulty
statistical reasoning, common to people with gambling problems. 
7 

The
Monty Hall Problem 
A simple probability puzzle (based on a game from
the American
gameshow Let’s Make a Deal), that has managed to fool many
people,
including those highly educated in fields that rely heavily on
mathematics. 
6 

Condorcet’s
Jury
Theorem 
Condorcet's formula based on the cumulative
binomial distribution, that predicts the probabilty of a correct
verdict based on:
 The number of jurors
 The probability of each juror being correct
 The number of jurors needed for a majority

5 

Survey
Sampling
Methods 
A description of the main categories of survey
sampling method. 
4 

Life
expectancy at birth versus
GDP per capita (PPP) 
A graph and statistical model of the nonlinear
relationship betwen life expectancy (at birth) and GDP per capita (PPP). 
3 

Gretl:
A free alternative to EViews 
A review of Gretl; a free econometrics software,
that is very similar to EViews. 
2 

Regression 
Regression
is a statistical modelling technqiue involving the fitting of a
mathematical equation to a set of data. The simplest example
is
fitting a straight line of best fit, to a scatterplot. 
1 

Battle
of Britain
Casualty Data 
The casualty data tables displayed at the end of
the movie Battle of Britain (1969). 