9 min read
This study guide covers analyzing relationships between categorical variables. It explores two-way tables (contingency tables), including joint and marginal relative frequencies. Visualizations covered include side-by-side bar graphs, segmented bar graphs, and mosaic plots. Finally, it explains how to determine associations between variables from these representations, emphasizing the distinction between correlation and causation.
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Question 1 of 8
In a two-way table displaying survey results on favorite color and pet preference, if the cell corresponding to 'Blue' and 'Dog' has a count of 50, what does this number represent?
The total number of people who prefer blue
The total number of people who prefer dogs
The number of people who prefer both blue and dogs
The combined number of people who like blue or dogs