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It is often difficult to analyze a crosstabulation simply by looking at the simple counts in each cell.
The fact that there are more than twice as many PDA owners in the $25,000 - $49,000 income category than in the under $25,000 category may not mean much (or anything) since there are also more than twice as many people in that income category.
A clearer picture now starts to emerge. The percentage of people who own PDAS rises as the income category rises. |
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Counts vs. Percentages |