Handout
Purple Math

Purplemath: Mean, Median, Mode, and Range

For Students 9th - 10th Standards
Mean, median, and mode are three kinds of "averages". The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers. To...
eBook
Missouri State University

Missouri State University: Introductory Statistics: Statistics

For Students 9th - 10th
This is an excellent resource on what the science of statistics involves. There are all kinds of definitions, examples, graphs, and charts to learn from. The topics covered include: mode, mean, median, skewed distributions and measures...
Interactive
Calculator Soup

Calculator Soup: Statistics Calculator

For Students 9th - 10th Standards
Calculate basic summary statistics for a sample or population data set including minimum, maximum, range, sum, count, mean, median, mode, standard deviation and variance.
Lesson Plan
University of Texas

Inside Mathematics: Baseball Players [Pdf]

For Teachers 5th - 7th Standards
This task challenges students to demonstrate understanding of the concept of measure of center.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Box Plots

For Teachers 9th - 10th Standards
This lesson plan introduces quartiles and box plots. It contains an activity and discussion. Supplemental activities about how students can represent data graphically are also included.
Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Stem and Leaf Plots

For Teachers 9th - 10th Standards
Lesson plan introduces students to stem-and-leaf plots. Many resources are available for student and teachers here.

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