CK-12 Foundation
Ck 12: Chi Squared Statistic
[Free Registration/Login may be required to access all resource tools.] Students will learn what the Chi-Square statistic is and how to use it to perform a Goodness of Fit test on a hypothesized distribution.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Curve Fitting
Drag data points and their error bars, and watch the best-fit polynomial curve update instantly. Choose the type of fit: linear, quadratic, cubic, or quartic. The reduced chi-square statistic shows when the fit is good.
Texas Instruments
Texas Instruments: Chi Square Test for Independence, and Homogeneity
This set contains questions about statistics regarding the chi-square tests for independence and for homogeneity of proportions. The student learns to develop hypotheses, find the test statistic, and reach a conclusion.
Texas Instruments
Texas Instruments: Numb3 Rs: Candy Land
Based off of the hit television show NUMB3RS, this lesson introduces students to the chi-squared statistical analysis. Although not completely in depth, the lesson does expose students to degrees of freedom, a simple chi-squared formula,...
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.
Science Education Resource Center at Carleton College
Serc: Nature of the Chi Square Distribution
Students learn that statistical distributions, such as the normal, Student's t, chi-square and F distributions are interrelated. They will explore these relationships and discover equivalent statistical tests that can used in specific...
CK-12 Foundation
Ck 12: Statistics: Chi Square Test
[Free Registration/Login may be required to access all resource tools.] This Concept demonstrates how to perform a goodness-of-fit test.
CK-12 Foundation
Ck 12: Statistics: Tests of Single Variance
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to testing variance using the chi-square distribution as well as creating a confidence interval for the variance.
University of Illinois
University of Illinois: Chi Square
A lesson giving problems that explains how to use chi-square statistics. Lesson includes several key problems that ensure student's understanding of statistical terms.
Wolfram Research
Wolfram Math World: Chi Squared Distribution
This site gives a good deal of information on the Chi-Squared distribution. Use links to refresh vital information in understanding the Chi-Squared distribution on this site.
University of Glasgow
Steps Glossary: Chi Squared Test for Homogeneity
A quick definition and explanation of the Chi-Squared Test for Homogeneity.
Rice University
Hyper Stat Online Statistics Textbook: Chi Square Test of Independence
The introduction to the Chi Square Test of Independence. An example is provided with an explanation.
Other
University of Reading: The Chi Squared Distribution
This site from the University of Reading provides a quick definition of the statistical chi-squared distribution. The formula is also provided.
Other
University of the Sciences: Chi Squared Test
Explains what the statistical Chi-Squared Test is and how it is used in biology. A good cross-curricular site.