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Bar Graphs and Line Graphs

Bar Graphs and Line Graphs. Pro. K.S. Noonia Department of Geography. Bar Graph. 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).

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Bar Graphs and Line Graphs

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  1. Bar Graphs and Line Graphs Pro. K.S. Noonia Department of Geography

  2. Bar Graph • 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.

  3. Histogram • A histogram is a bar graph that shows the frequency of each item. Histograms combine data into equal-sized intervals. • There are no spaces between the bars on the histogram.

  4. Line Graph • A line graph uses a series of line segments to show changes in data over time. • Plot a point for each data item, and then connect the dots with straight line segments.

  5. Refer to page 336 for the line graph.

  6. Homework Time

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