Properties of Bar Graphs

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# Properties of Bar Graphs - PowerPoint PPT Presentation

Properties of Bar Graphs. Bars can be vertical or horizontal Bars are of uniform width and uniformly spaced Length of bars represent value of variable being displayed Graph has title, labels for each bar and scale for length of bar. Data for Bar Graph.

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## PowerPoint Slideshow about 'Properties of Bar Graphs' - andrew

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Presentation Transcript
Properties of Bar Graphs
• Bars can be vertical or horizontal
• Bars are of uniform width and uniformly spaced
• Length of bars represent value of variable being displayed
• Graph has title, labels for each bar and scale for length of bar
Data for Bar Graph

A recent study on Bronze Age spearheads recovered from ancient rivers in Ireland provided the following information (see 2.2#6):

Other Types of Charts
• A Pareto chart is a bar graph in which the bar height represents the frequency of an event. In addition, the bars are arranged from left to right according to decreasing height.
• In a circle graph (or pie chart), wedges of a circle display proportional parts of the total population that share a common characteristic.
Time Series Graphs
• In a time series graph, data are plotted in order of occurrence in regular intervals over a period of time.
• Time series data consists of measurements of the same variable for the same subject taken at regular intervals over a period of time.