An official website of the United States government

Activities
Resources
Standards
Search data, events, resources, and more

Activities
Bring your classroom to life with real world data. Select an activity that supplements what you are currently teaching in subjects including English, Math, Geography and History.
Resources
Increase the data literacy of your students with resources that display data in fun ways. Choose from monthly Fun Facts, 5-Minute Challenge warm-up activities, maps, videos and more.
Standards
Statistics in Schools activities are based on relevant education standards and guidelines that outline the foundational knowledge and skills students should have at certain levels.
Statistics in Schools is a free Census Bureau program that uses the data to create resources for K-12 students in a variety of subjects.

# Census in Counties - Describing and Comparing Histograms to Understand American Life

### Activity Description

Students will analyze a variety of county-level census data, including on employment, technology, and transportation, in histograms to compare and contrast the shapes of their distributions and to interpret measures of center and spread in context.

9-12

45-60 minutes

### Learning Objectives

• Students will be able to analyze data and describe data distributions.
• Students will be able to understand skewness and how it affects the mean and median.
• Students will be able to determine the direction of skewness from a distributionâ€™s mean and median.
• Students will be able to understand the impact of outliers on the standard deviation and interquartile range.

### Materials Required

• The student version of this activity, 16 pages

Share

## Teacher Notes

#### Blooms Taxonomy

Understanding

Students will understand how the mean and median relate in skewed distributions. They will also analyze and
evaluate census data to draw conclusions about which measure of center is more representative for various
distributions.

High School Math

#### Topics

• Histograms
• Measures of center
• Shape of distributions
• Skewness

#### Skills Taught

• Interpreting skewness from a graph
• Interpreting the standard deviation and interquartile range
• Understanding skewness and its effect on the mean and the median
• Understanding when to use the mean versus the median
Page Last Revised - October 8, 2021