Do males or females buy more iPhones? Using a two-way frequency table can help to answer this question. Pupils learn to create two-way frequency tables and then how to analyze the data within the tables. Learners find frequencies, relative frequencies, and look for relationships within the categorical data. 

Concepts

frequency tables, bivariate data, categorical data

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Additional Tags

math

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Instructional Ideas

• Collect data from your classes to create two-way frequency tables
• Post the video as a resource for absent students and those needing extra instruction

Classroom Considerations

• Requires Internet access to view the video resource
• The fifth in a series of six statistic lessons

Pros

• Data chosen is relevant to pupils and easy to collect from your classes
• Includes a large set of practice problems and answer key

Cons

• None

Common Core

8.SP.A.4