What does your bar graph sketch look like? More like A, or more like B below? Example A – 20 dots drawn on ... Sketches either illustrated an accurate interpretation of an average, with data points ...

There are dozens of chart types ... length of the bar for California, while Oregon’s bar is about half the length of California. Even a reader without experience interpreting data visualizations ...

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 is best for comparing groups of data.

35 We could show this data in a bar chart, but it would have a lot of bars! We can group them together so that we have fewer categories. When choosing intervals for the data sets make sure that ...

The problem is that data visualizations can also leave you with the wrong idea – whether the images are sloppily made or intentionally misleading. Take for example the bar graph presented at an ...

While the graph itself is accurate, the way it is presented is misleading. Examples of such ... to ask whether this bar graph accurately represents the FBI data from which it originated.