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 ...

I am not going to try and even surprise you with this. Notice the "tools:". This post is not about physics really, but something used in physics. When I get enough of these, I will put them together ...

Thanks to their visual simplicity, bar graphs are popular tools for representing data. But do we really understand how to read them? New research has found that bar graphs are frequently misunderstood ...

You can make a bar graph in Excel by first selecting the range of data you want to depict, and then using the dropdown menu to select the desired chart. A bar graph represents the data of an Excel ...

The Chuckle Brothers demonstrate how to use a simple bar chart to show information about the popularity of a meal. Students could be given a number of small toys or plastic animals which represent ...

Relative superiority is rarely all that we want to know from data visualization. Often, we want to know how variable a measure, population, or distribution is. And variability cannot be gleaned from ...