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Bar Graphs, Histograms, Line Graphs Arizona State Standard – Solve problems by selecting, constructing, interpreting, and calculating with displays of data. S2C1PO1

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Objective I will be able to use a bar graph to represent data. I will be able to read and construct histograms. I will be able to use a line graph to represent data.

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Bar Graphs A bar graph uses vertical or horizontal bars to display numerical information. Bar graphs can be used to compare amounts. Choose an appropriate scale (with regular intervals). The bars should have the same width.

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3 Types of Bar Graphs Simple Bar Graph

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3 Types of Bar Graphs Double Bar Graph

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3 Types of Bar Graphs Stacked Bar Graph

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Histograms – compare continuous data in intervals A histogram is a bar graph in which the bars represent equally spaced intervals of numbers (you must decide on your equal intervals). There are no spaces between the bars on the histogram. Make a frequency distribution & use the totals to create the histogram

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Let’s Practice Page 210 # 1 - 4

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HOMEWORK Page 210 # 5 - 15

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Line Graphs Line graphs show trends over intervals of time. Line graphs can have one line or several lines.

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3 Types of Line Graphs: Simple Line Graph

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Double Line Graph

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Multi-Line Graph

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Let’s Practice Page 216 # 9 - 10

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HOMEWORK Page 216 # 4 – 8 AND Page 217 # 12 - 15

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