Statistical Methods:

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Random Sampling

This site is designed for anyone who wants a quick way to generate random numbers or assign participants to experimental conditions. Research Randomizer can be used in a wide variety of situations, including psychological experimentation, medical trials, and survey research. The program uses a JavaScript random number generator to produce customized sets of random numbers.

Bureau of Labor Statistics

An independent national statistical agency that collects, processes, analyzes, and disseminates essential statistical data to the American public, the U.S. Congress, other Federal agencies, State and local governments, business, and labor.

U.S. Census Bureau

The Census Bureau conducts many censuses and surveys. The most well-known is the official population census of the United States, called the decennial census. It is conducted every ten years, most recently in April 2000. During each decennial census, the Census Bureau collects data from every household in the U.S. and its territories.


KIDS COUNT offers several interactive online databases that allow visitors to create free, customized data reports on-the-fly. The report choices vary by system, but include the ability to generate custom profiles, line graphs, maps, and rankings, and download raw data.

Sports Data

Links listed were some current and archived sports data

Statistical Abstract

The Statistical Abstract of the United States, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States.

Census of Population and Housing

Census of Population and Housing data present from the most recent census to the historical decennial census conducted throughout the decades.

Rossman/Chance Applets Collections

A collection of java applets designed to illustrate various topics in statistics and probability. Topics include Histogram Bin Width, Dotplot Summaries, Guess the Correlation, Least Squares Regression, Simulating Confidence Intervals for Population Parameter, Behavior of Regression Line, Reeses Pieces, Sampling Senators and Sampling Pennies.

Histogram Cross Validation

This applet allows learners to explore the shape of data distributions. The histogram applet automatically provides auxiliary graphs of the cross-validation functions that estimate the quality of the currently displayed histogram.

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