• Unit 7: Graphs and Charts

    The list of available graph and chart applications is endless. You may have seen applications such as trying to understand voting trends and demographics for presidential campaigns and elections. Or, a business may require graphs and charts to forecast employment growth for a specific time period. Or, you may belong to a fantasy football or baseball team, and you may need to analyze the history of points that players have against certain teams as well as other statistics. In reading a news article that provides a chart, you may want to determine what information the chart provides. Using graphs and charts is a way to convey data that is easy to understand for a specific audience. Knowing how to read and interpret these items is of utmost importance in life, because charts and graphs can be manipulated to misrepresent the data.

    This unit discusses various topics when using graphs and charts in mathematics. For each type of graph in the unit, you will need to create a graph as well as interpret the results of this type of graph. You will learn to create charts and graphs (stem-and-leaf plots, line graphs, bar graphs, box-and-whisker plots, circle or pie graphs, and pictographs), read charts, and work with the measures of central tendency for a data set.

    Completing this unit should take you approximately 7 hours.

    • 7.1: Mean, Median, Mode, and Range

    • 7.2: Stem-and-Leaf Plots

    • 7.3: Line Graphs

    • 7.4: Bar Graphs

    • 7.5: Box-and-Whisker Plots

    • 7.6: Circle or Pie Graphs

    • 7.7: Pictographs