Description
In Topic C, students reconnect with previous work in Grade 8 involving categorical data. Students use a two-way frequency table to organize data on two categorical variables. Students calculate the conditional relative frequencies from the frequency table. They explore a possible association between two categorical variables using differences in conditional, relative frequencies. Students also come to understand the distinction between association between two categorical variables and a causal relationship between two variables. This provides a foundation for work on sampling and inference in later grades.
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Credits
From EngageNY.org of the New York State Education Department. Algebra I Module 2, Topic C, Overview.
Available from engageny.org/resource/algebra-i-module-2-topic-c-overview; accessed 2015-05-29.
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