This post explains how to calculate Weighted Average in Excel with percentages. In a standard arithmetic average where the sum of values is divided by the number of values, each data value is treated ...

Have you ever thought of the humble SUM function as a secret weapon for advanced analytics? Most Excel users see it as a basic tool for adding numbers, but what if I told you it could do so much more?

However, this might not always give you an accurate average, which is where functions like GEOMEAN and HARMEAN come in. The ...

I use these functions to summarize data with formulas instead of dialog boxes. That makes it easier to see exactly what's ...

I came across this in a class today and it has me wondering. Perhaps this has been asked serveral times, but does MS have (still) an official reason for using two different names for the same function ...