Discover 10 essential Excel formula symbols to save time, reduce errors, and transform your workflow. Perfect for beginners and experts alike ...

Microsoft Excel has an array of built-in functions and formulas. Excel's "trimmean" function calculates the mean of the interior of a data set.

The Standard Error of the Mean measures how far the sample mean is from the main population mean. While the formula for calculating it is a little complex, Excel makes it simple.

How to Calculate a Trimmed Mean in Excel. A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to ...