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Published byBrianna Cox Modified over 9 years ago
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Graphing If a picture is worth a thousand words, a graph is worth a thousand pictures.
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Pie Charts In a pie chart, the “pie” represents the whole. The pie is divided into different parts based on a characteristic. They usually represent percentages of the whole.
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Bar Graphs A bar graph is useful for comparing information collected by counting. The height of each bar visually shows the value.
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A bar graph can be created sideways or..
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show negative values
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or more than one value..
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or show data in 3 dimensions.
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Line Graphs Line graphs are used to show trends or changes over time.
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Independent Variable The independent variable is the factor that the scientist changes or adjusts. It is displayed on the x axis. Often it is time.
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Dependent Variable The dependent variable is the factor that changes because of the changes in the independent variable. It is shown on the y axis.
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More than one line can be placed on the same graph for comparison.
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Pictographs A pictograph is basically a bar graph that uses eye catching symbols.
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