The GEOMEAN and HARMEAN are advanced statistical functions that typically require a deeper understanding of mathematics. This is probably why they aren't taught as often as the AVERAGE function.

Excel's MAP function changes that. Instead of applying formulas one cell at a time, MAP processes entire ranges of data at ...

Some people may be starting to come to grips with the fact that social media isn’t so great for mental health. Others may think that getting on it will give them a boost—but especially depending on ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...