AVERAGEIF and AVERAGEIFS aren't the only functions in Excel that calculate the average of a dataset. For example, the AVERAGE function produces a straightforward arithmetic mean of a set of data, and ...

Calculate Z-scores for WorldCom using annual 10-K financial reports for years ending Dec. 31, 1999, 2000, and 2001. You'll find that WorldCom's Z-score suffered a sharp fall.