Charts & Graphs

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What is a Line Graph?

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A Line Graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is often used to show trends over time.

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What is a Bar Graph?

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A Bar Graph is a chart that presents categorical data with rectangular bars. The length of each bar is proportional to the value it represents.

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What is a Pictograph?

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A Pictograph is a graph that uses pictures or symbols to represent data. Each picture represents a certain number of items.

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When would you use a Line Graph?

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A Line Graph is used when you want to show changes over time or trends in data.

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When would you use a Bar Graph?

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A Bar Graph is used to compare different categories or groups of data.

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When would you use a Pictograph?

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A Pictograph is used to represent data in a visually appealing way, often for younger audiences or to simplify complex data.

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What is the main purpose of using graphs?

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The main purpose of using graphs is to visually represent data, making it easier to understand and analyze.

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What does the x-axis represent in a graph?

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The x-axis is the horizontal line on a graph that typically represents the independent variable.

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What does the y-axis represent in a graph?

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The y-axis is the vertical line on a graph that typically represents the dependent variable.

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What is a key in a graph?

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A key in a graph explains what the symbols or colors represent, helping to interpret the data.