Quia
Ixl Learning: Correlation
Brush up on your math skills relating to correlation then try some practice problems to test your understanding.
Wolfram Research
Wolfram Math World: Spearman Rank Correlation Coefficient
This page gives a description of the Spearman Rank Correlation Coefficient, which is an approximation to the exact correlation coefficient, r. It is somewhat easier to compute than the exact correlation coefficient. Also provides links...
University of Baltimore
University of Baltimore: Alternative Approach for Estimating a Regression Line
A quick, three-step approach to estimating the regression line of a set of data known as the "distribution-free method." Written by Dr. Hossein Arsham
Other
Correlation Coefficients
This page provides a good discussion of correlation coefficients (r,) which indicate the "strength of the linear association between variables." Includes formulas and scatter plots. Some prior knowledge of statistics might be helpful.
Shmoop University
Shmoop: Basic Statistics & Probability: Scatter Plots & Correlation
The statistics resource explores scatter plots and correlation. Students learn about the concepts through notes and detailed examples. The resource consists of practice exercises to check for comprehension of the topics.
University of Glasgow
University of Glasgow: Steps Statistics Glossary: Correlation Coefficient
Overview of correlation coefficient, or a number between 1 and -1 which measures the degree to which two variables are linearly related. It is followed by a description of the Pearson product moment correlation coefficient.
University of Glasgow
Steps: Pearson's Product Moment Correlation Coefficient
Overview of Pearson's Product Moment Correlation Coefficient, which is just one example of a correlation coefficient.
CK-12 Foundation
Ck 12: Plix Series: Correlation and Causation
[Free Registration/Login Required] Sort a list of events into a Venn diagram with the categories Causation and Correlation, then answer a challenge question.
Rice University
Hyper Stat Online Statistics Textbook: Correlation
This resource gives a definition of correlation and an example using a fire and fire fighters.
Rice University
Hyper Stat Online Statistics Textbook: Coefficient
A definition of a coefficient, as used in statistics, that includes an example.