A percentile graph visualizes the percentiles of a given data set. The graph will show a box suspended on the graph that represents the area between the 25th and 75th percentile. The graph will also ...

Microsoft Office's Excel application allows users to store, model and manipulate data sets. Excel spreadsheets organize this data into worksheets, each with a number of rows and columns. Each row or ...

To calculate the Consumer Price Index between two years in Excel, take a sum of all the amounts spent on the basket of products over those two years. Then use the following formula to find the CPI ...

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If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Tired of erasing holes in your graph paper or having to start over from scratch? Here's an easy way to create your own custom graph paper in Excel. This past week, I started mapping out new flowerbeds ...