Illustrative Mathematics
Illustrative Mathematics: S Id Golf and Divorce
This is a simple task addressing the distinction between correlation and causation. Students are given information indicating a correlation between two variables and are asked to reason out whether or not a causation can be inferred.
Illustrative Mathematics
Illustrative Mathematics: S Id Coffee and Crime
This task addresses many standards regarding the description and analysis of bivariate quantitative data, including regression and correlation. Given a scatter plot, students will answer a variety of questions about linear relationships,...
CK-12 Foundation
Ck 12: Scatter Plots and Linear Correlation
[Free Registration/Login may be required to access all resource tools.] This lesson covers plotting a scatterplot and finding a linear equation that best fits the data.
CK-12 Foundation
Ck 12: Statistics: Least Squares Regression
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to least-squares regression.
Thinkport Education
Thinkport: Algebra Ii: Linear, Quadratic and Exponential Regression
Review linear regression and analyze how well this model fits the data. You will also be introduced to residuals and the correlation coefficient, and use these tools to determine whether or not a linear model is the best fit for a set of...
Shodor Education Foundation
Shodor Interactivate: Multiple Linear Regression
Students compare multiple independent variables as predictors of one dependent variable. Students explore correlation and lines of best-fit.
Shodor Education Foundation
Shodor Interactivate: Regression
Plot a bivariate data set, determine the line of best fit for their data, and then check the accuracy of your line of best fit.
Shodor Education Foundation
Shodor Interactivate: Linear Regression and Correlation
Students are introduced to correlation between two variables and the line of best fit.
Shodor Education Foundation
Shodor Interactivate: Comparison of Univariate and Bivariate Data
Young scholars learn about the difference between univariate and bivariate data and understand how to choose the best graph to display the data.
Khan Academy
Khan Academy: Scatterplots and Correlation Review
A scatterplot is a type of data display that shows the relationship between two numerical variables. Each member of the dataset gets plotted as a point whose x-y coordinates relates to its values for the two variables.
Khan Academy
Khan Academy: Correlation Coefficient Review
The correlation coefficient r measures the direction and strength of a linear relationship. Calculating r is pretty complex, so we usually rely on technology for the computations. We focus on understanding what r says about a scatterplot.
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...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: What Is a Regression Line?
This page is an answer to an email question that someone wrote in and it explains what a regression line is.
Other
Introduction to Simple Linear Regression
This introduction to simple linear regression includes graphs and a discussion of extrapolation and interpolation.
Other
Northern Michigan University: Line Plots
The author utilizes a line plot to demonstrate what an "outlier" is, what "clusters" are, and what "gaps" are.
Math Graphs
Houghton Mifflin: Math Graphs: Line of Best Fit 13 [Pdf]
Students investigate the line of best fit and the regression feature of a graphing calculator. The example consists of a math graph with given points that are available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Line of Best Fit 14 [Pdf]
Students investigate the line of best fit and the regression feature of a graphing calculator. The example consists of a math graph with given points that are available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Line of Best Fit 17 [Pdf]
Students calculate a linear regression model using a graphing calculator. The given points are available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Line of Best Fit 18 [Pdf]
Students calculate a linear regression model using a graphing calculator. The given points are available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Fitting Models to Scatter Plots 5 [Pdf]
Students evaluate a scatter plot to determine the relationship between two variables. The scatter plot is available in PDF format.
Math Graphs
Houghton Mifflin: Math Graphs: Fitting Models to Scatter Plots 6 [Pdf]
Students evaluate a scatter plot to determine the relationship between two variables. The scatter plot is available in PDF format.
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.
ClassFlow
Class Flow: Scatter Graphs Handling Data
[Free Registration/Login Required] In this flipchart, students analyze a pattern, in the form of a scatter graph then judge the reasonableness of conclusions drawn from a set of data.