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 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.