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## Types of Graphs and Graphing Rules

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**Types of Graphs**• There are three types of graphs that we will use in this class: • Line Graphs • Bar Graphs • Pie Graphs**Line Graphs**• These graphs are used to show continuous change, usually over time • For example, you might want to show the progress of something over a period of time**Bar Graphs**• These graphs are used to show a comparison between data or between different IVs • For example, when comparing the number of students who like various types of fruit**Pie Graphs**• These are used to show the different parts or percentages of a whole • For example, the percentages of students at Wagner who are involved in the various clubs and those who are not**Graphing Rules**• All graphs must have a Title • Usually in the form of “The Effect of the IV on the DV” • All axes should be labeled with titles and the units of measurement • All integers along each axis should be spaced equally and full use made of the entire graphing space**Graphing Rules**• The independent variable is graphed along the horizontal X-axis • The dependent variable is graphed along the vertical Y-axis • Always provide a keyor legend when graphing more than one set of data**Draw a set of axes…**• Label them with these words in the correct location • Title “The Effect of IV on DV” • Horizontal X-Axis • Vertical Y-Axis • Legend or Key • IV Independent Variable • DV Dependent Variable • Units of measurement