New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 532nd installment in their series of digital spreadsheet magic tricks, you'll learn how to use the AVERAGE, STDEV, MAX, MIN and SUM function to add statistical data. Specifically, this video lesson discusses how to sum and average evidence in an age discrimination case.