Big Ideas Math: Modeling Real Life, Grade 8
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3. Two-Way Tables
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Exercise 2 Page 250

A two-way table is a frequency table that displays two categories of data collected from the same source. One category of data is represented by rows and the other is represented by columns. We want to find and interpret the marginal frequencies. Let's do these things one at a time.

Finding the Marginal Frequencies

We are given the following frequency table.

Football Game
Dance Attend Not Attend
Attend
Not Attend