Unit 4 Stats Categorical Data

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10 Terms

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Variables

Characteristics of data that is recorded

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Categorical

Names, categories, count # of occurrences

(Y/n, t/f, fav color)

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Quantitative

Find an average

(Height weight ACT Score)

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<p>Bar graph</p>

Bar graph

Shows actual count= Frequency

Or % (relative frequenc)

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<p>Side by side bar graph (sbs)</p>

Side by side bar graph (sbs)

Comparing different groups

must use %

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<p>Segmented bar graph</p>

Segmented bar graph

Stacked sbs graph

-must use %

* if bars look exactly the same

“No association”

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<p>Bar graph </p>

Bar graph

Use %

Adds to 100%

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<p>Two way table</p>

Two way table

shows data for 2 categorical variables

*marginal distribution+anything from the totals

*dnominator changes

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for all categorical data

things can ONLY go in ONE category

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conditional distribution

distribution only look @ one row/column

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