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Constructing Two-Way TablePowerPoint Presentation

Constructing Two-Way Table

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Constructing Two-Way Table

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Constructing Two-Way Table

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How do I construct and interpret a two-way table that summarize data on two categorical variables collected from the same subjects?

Opening: Constructing Two-Way Table

EQ

Opening: Constructing Two-Way Table

SP.4

Understand that patterns of association can also be seen in bivariate categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data on two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables.

Standard

Opening: Constructing Two-Way Table

In this lesson you will learn how to construct a two way table by collecting and organizing data from a verbal description.

How do you organize data of students with cell phones that also have MP3 players?

Opening: Constructing Two-Way Table

A two-way table shows data that pertain to two different categories.

Opening: Constructing Two-Way Table

27

Opening: Constructing Two-Way Table

A survey of 8th graders at a middle school found that 73 students own a cell phone and 60 of those students also own an MP3 player. There are 9 students that do not own a cell phone, but own an MP3 player. Eight students do not own either device

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Your Turn…

A survey was conducted to see if students get an allowance and if they have to do household chores. Of the 12 students that receive no allowance, 5 of them have no chores. There are 17 students who do chores and receive an allowance, while 6 students get an allowance without doing any chores. Construct a two way table to display this data.

Opening: Constructing Two-Way Table

Opening: Constructing Two-Way Table

Closing: Constructing Two-Way Table

8 people have no dog. Of those 8, 2 have no cat either. There are 4 people with a cat and a dog, while 3 students have a dog and no cat.

How many people were surveyed?

Closing: Constructing Two-Way Table

25 students were surveyed. 14 students do not participate in sports and 7 do not take a foreign language. 6 student take foreign language and play sports.

How many students take a foreign language and play no sports?