A line chart shows changes over time ... This type of chart not only highlights trends and relationships between different ...

How big of a problem is it worldwide? By The Learning Network A new collection of graphs, maps and charts organized by topic and type from our “What’s Going On in This Graph?” feature.

Different types of graph have different uses. A line graph shows how data changes over time. For example, how the volume of traffic changes over a day so you can see the busiest times. A bar chart ...