Data visualization is a powerful tool in data analysis that allows you to see the distribution of your data in a clear way. One of the most common graphs in data analysis is the box and whisker plot.

Microsoft Excel, a spreadsheet and data analysis program, is available as a stand-alone program or as a component of the Microsoft Office productivity suite. Excel 2007 included a number of new ...

A chart is a graphical representation of data that helps your audience to understand your information easily; charts make comparisons in your data and analyze the trends or patterns in data sets.

Excel has so many charts that the best one for the job is often easy to miss. You might instinctively reach for the familiar column chart, but that can cause more problems than it solves by obscuring ...

*Quartiles* are quantiles (also percentiles) that divide the data into approximately four equal parts. A *box and whisker plot* is a graph showing the data distribution using the *five-number-summary* ...