Explains, with examples, what scatter plots are and how to interpret the data. Discusses trends, interpolation and extrapolation, and correlation. Includes a set of practice questions.

Practice making sense of trends in scatter plots. That is, explain what trends mean in terms of real-world quantities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive...

Find a quick, concise explanation of what a scatter plot is. Several examples are given and clearly explained.

Site explains how the XGobi computer program can be used to plot data in a scatter plot.

Find a quick, concise explanation of a line plot. An example is given and clearly explained.

Students can use the TI-84 Plus family to enter data, do a scatter plot and find the line of best fit and explain how they could use it to predict future values.

Explore, explain and make conclusions based on graphs of scatter plots of the Olympic records for men and women in the same event over the same years. Plot x- and y-values, and create linear equations from the data.

Use examples to determine and explain the linear correlation of independent and dependent variables.

Practice explaining the meaning of slope and y-intercept for lines of best fit on scatter plots. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

Dozens of statistical terms are defined and illustrated in this glossary.