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Stack #4579094
| Question | Answer |
|---|---|
| Numerical data = | counts, measurements |
| Univariate = | 1 variable |
| Bivariate = | 2 variables |
| Categorical → | bar graph, pie chart |
| Numerical (univariate) → | histogram, box plot, dot plothistogram, box plot, dot plot |
| Bivariate numerical → | scatter plot |
| Bivariate categorical → | two-way table, double bar graph, segmented bar graph |
| Joint frequency = | inside cell |
| Marginal frequency = | totals (row/column) |
| Conditional frequency = | cell ÷ row/column total |
| Inferences = • Must be random • Must be representative | • Must be random • Must be representative |
| Biased sample = | invalid inference |