Bar graphs seem like one of the simplest ways to represent data. Many people assume that the longer the bar, the bigger the number it represents. Sometimes bar graphs represent an average not a total ...

Log-in to bookmark & organize content - it's free! Using examples, journalist Alberto Cairo talked about ways that data, charts and visualization are represented and interpreted. He discussed ...

Thanks to their visual simplicity, bar graphs are popular tools for representing data. But do we really understand how to read them? New research from Wellesley College published in the Journal of ...

One way of demonstrating how businesses manage their stock levels is to use a bar gate stock diagram like the one below. The maximum stock level is the largest amount of stock a business can store on ...

The content of courses and the methods by which students learn are crucial in teaching the life sciences (NRC 1999, NRC 2003). Skills in data analysis and graph interpretation are particularly ...

are a "tool to think with" and as such, have no agenda of their own. Instead, they are designed to provide "essential fundamentals at a glance" and allow the user to interpret the data according to ...