This clip explores circle graphs in depth. It explains that each part of these graphs is called a sector. The clip explains that the sum of the values in the graph must equal 100%, then provides practical problems, including one in which the value o...
This clip explores bar graphs in depth, explaining that each bar represents discrete data. The clip also reminds the student that, "
we'll often have to estimate amounts in bar graphs. Remember, the purpose of a graph is to provide a visual image o...
This clip introduces graphs as the most visual way to present data, then defines circle, bar and line graphs.
This clip explores line graphs in depth, explaining that they show data as continuous values. The clip includes examples of line graphs illustrating automobile speed, temperature readings, and semiconductor sales.
This clip explains that two graphs displaying the same data can give very different visual impressions. "That's why it's important to check the vertical scale of a graph before making an interpretation," the clip states.
This clip explains that sometimes a distorted graph may be a more practical way to display data, then provides a number of examples, including a bar graph of U.S. population, a line graph of Federal debt, and a line graph of households with cable te...