Mathematics

Statistics

Computer
Sciences

Physics

Chemistry

Program

Short Description

Reference

#2001
Central Limit
Theorem

The program CenLimit shows the effects of the central limit theorem. The user may select various distributions drawing different numbers of samples to calculate the means. The distribution of the means is plotted..... more

Teach/Me
Data Analysis

#2002
Distribution
Calculator
Lines

The program DistCalc calculates probabilities and critical values for the most important distributions. The purpose of this program is to show the concept of critical values and the replacement of printed distribution tables......more

Teach/Me
Data Analysis

#2003
Leverage
Effect in
Regression

This program visualizes the effects of outliers to regression lines. The user may pick up a point with the mouse and move it across the chart. The resulting regression line is automatically adjusted after each movement, showing the effect in an immediate and impressive way..... more

Teach/Me
Data Analysis

#2004
Error Surface
of Linear
Regression

Linear regression can be seen as an optimization problem, searching for the lowest point of the error surface. This program allows to play with the error surface of a regression line and to find the optimum fit by intuitive means...... more

Teach/Me
Data Analysis

#2005
Distribution
of the
Correlation
Coefficient

The correlation coefficient is one of the commonly used statistical measures. Despite its frequent use, the fact that the correlation coefficient shows a broad distribution if too few observations are used is not well-known....... more

Teach/Me
Data Analysis

#2006
Regression
of Weakly
Correlated
Data

There is a common mistake about the linear regression of x-y-measurements with small or no correlation between them. This simulation tries to shed some light on this aspect of linear regression....... more

Fundamentals
of Statistics

#2007
Time Averaging
of Signals

Signals below the detection limit cannot be measured without improving the signal-to-noise ratio. This program shows the improvement of the SNR by accumulating signals....... more

Teach/Me
Instrumentelle Analytik

#2008
Discrete
Distributions

Discrete distributions are an important class of distributions when it comes to sampling binary data. This program calculates the binomial, the hypergeometric and the Poisson distribution. ....... more

Fundamentals
of Statistics

#2009
Linear Regression
for Chemical
Analysis

Linear regression is a commonly used method to establish a relationship between a measured variable and a response variable. This program allows to calibrate this relationship..... more

#2010
Measures of
Location

This program shows the effects of individual data points on some univariate measures of location (mode, median, mean, and trimmed mean). The user may pick and move individual data points, watching the change of these measures...... more

Fundamentals
of Statistics

#2011
Cauchy
Distribution

This program simulates a Cauchy random process and allows to calculate the mean as a function of the sample size ........ more

Fundamentals
of Statistics