Bar Graph Analysis and Creation
A Picture is Worth a Thousand Words
Print this page and use it to complete the lesson.
Bar Graphs -- Analysis of Data:
- Go to http://www.census.gov/statab/www/img/smoke.gif
- Use the bar graph to answer these questions:
- What was the average percent of male smokers in 1992?
- What was the average percent of female smokers in 1992?
- Are differences between male and female smoking rates consistent in each age bracket?
- What are some possible reasons for the large decrease in smokers age 65 and over?
- If a bracket for ages 10 - 17 years had been included, what do you predict the values would be? Why?
Bar Graphs -- Creation:
- Go to http://icg.fas.harvard.edu/~census/
- This site displays United States census information for the years 1790 - 1970. Select a decade as your topic of investigation.
- Select a theme from your decade.
- Select several northern states and southern states.
- Select up to 10 topics to analyze.
- Scroll to the bottom of the page and click the "Browse" button.
- Create 2 bar graphs:
- states vs. topic 1 of your choice
- states vs. topic 2 of your choice
- Discuss the results of your investigation. Write 3 questions that can be answered by studying your graphs.