The shape of a data distribution can help shape one's understanding of the data. The second of five lessons in Algebra 1 Unit 4 focuses on data distributions. By watching a video, scholars learn about symmetric, bimodal, and skewed distributions. They then consider how the inclusion of an outlier will affect the mean, median, and standard deviation of a data set.

Concepts

data analysis, mean, median, dot plot, histograms, stem and leaf plots, standard deviation

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Instructional Ideas

• Use the corrective assignment as homework
  

Classroom Considerations

• Pupils should have basic familiarity with different types of data displays, including dot plots, histograms, and stem-and-leaf plots
• Experience with mean and median is necessary
  

Pros

• Worksheets include examples from the video so students can take notes
• Facilitators will appreciate the separate answer key
  

Cons

• None

Common Core

HSS-ID.A.2 HSS-ID.A.3