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Free Online Math Calculators and Converters. Mathematics Calculation is made easier.

Standard Deviation Calculator, free download. Standard Deviation Calculator 1: Calculate standard deviation with step by step solution using our FREE calculator.

The richest collection of free online calculators, including mortgage, loan, BMI, weight watchers points calculator and hundreds more...

Wessa.net offers free educational forecasting software (time series analysis) and statistics software.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Real time SPC Software from InfinityQS International is used by major manufacturers for automating quality data collection & analysis for better shop floor control & management applied within a Six Sigma framework.

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support.sas.com is the location for SAS software users who want to find the answer to a SAS problem, sign up for a training course or users group event, buy a book, or learn more about newer releases of our software.

An R introduction to statistics that explains basic R concepts and illustrates with statistics textbook homework exercises.

Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

GraphPad Prism is a powerful combination of biostatistics, curve fitting (nonlinear regression) and scientific graphing in one comprehensive program. Easily organize, analyze and graph repeated experiments; pick appropriate statistical tests and inte...

wiseGEEK: clear answers for common questions