1 / 7

Chapter 3 Displaying and Describing Categorical Data

Chapter 3 Displaying and Describing Categorical Data. AP Statistics. Categorical vs Quantitative Data. Categorical data: Names categories and answers questions about how cases fall into those categories. Can be a number, example: grade in school (12 th ) Quantitative data:

locke
Download Presentation

Chapter 3 Displaying and Describing Categorical Data

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Chapter 3Displaying and Describing Categorical Data AP Statistics

  2. Categorical vs Quantitative Data Categorical data: Names categories and answers questions about how cases fall into those categories. Can be a number, example: grade in school (12th) Quantitative data: Answers questions about the quantity of what is measured. Takes numerical values for which things like averages make sense.

  3. Displaying Categorical Data • Tables (frequency tables) • Bar chart • Pie chart • Segmented Bar Graph • Good for comparing, looking for independence. • Only use for percents—not counts

  4. Displaying Categorical Data Area Principle Basically—don’t make graphs 3-D. May look nice, but is not accurate.

  5. Describing Categorical Data

  6. Describing Categorical Data Create a segmented bar graph comparing education level among smokers and non-smokers.

  7. Describing Categorical Data Do you think smoking is independent of education level?

More Related