Error bars illustrate the margin of error for a survey estimate by showing how precise that estimate is. Here are some answers to common questions that might help you better understand charts with ...

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

FAST Graphs™ 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 ...