In statistics, quartiles are a method of breaking up a set of numbers into four equal parts. While this concept may seem simple, it actually requires some in-depth calculations to determine the exact ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Khadija Khartit is a strategy, ...

There are a few ways to count the number of items in an Excel list, depending on the data you have. In this tutorial, learn how to count items in Excel using the COUNTIF and SUBTOTAL functions. Image: ...

Please note: This item is from our archives and was published in 2005. It is provided for historical reference. The content may be out of date and links may no longer function. Q. I know Excel ...