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Calculating a Least Squares Regression Line: Equation, Example, Explanation If you want a simple explanation of how to calculate and draw a line of best fit through your data, read on!

Pivot tables generate great reports in Microsoft Excel, but adding a filter or two can make them even more flexible. Here's how.

Here's how to create a pivot table in Excel to slice and dice your data, letting you perform in-depth analyses and spot important trends.