Chapter 3
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11 terms
Terms | Definitions |
|---|---|
 Scatterplot | Graph that depicts the relation between two scale variables. Ex: Hours students study, grade in class |
| Linear Relation | the relationship exhibited by two varibles that apears as a straight line when graphed on a coordinate system. |
| Nonlinear Relation | An association or relationship between variables that cannot be graphed as a straight line. |
| line graph | a graph that uses line segments to show how data changes over time. |
| Time plot | Displays data that change over time. (line graph) |
| Bar graph | A visual depiction of data when the independent variable is nominal and the dependent variable is scale. Each abr typically represents the average value of the dependent var. for each category. |
| Pareto Chart | a graph that shows the number of times a problem cause occurs with problem causes ordered by most frequent to least frequent |
| Pictorial Graph | a visual that dramatizes statistical data by means of pictorial forms. |
| Moire vibrations | Refers to any of the patterns that computers provide as options to fill in bar graphs (and ect). Tufte recommends only using shade of gray instead of patterns. |
| Ducks | any features of the data that have been dressed up to be somthing other than merely data |
| Chartjunk | a term coined by Tufte to describe informative graphics which include too many decorative/indicative (i.e. imagistic) elements, such as color, three-dimensionality, moiré or line textures, or actual images, aka "data ducks." |
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