The T-Value is a common statistical calculation with a very wide range of applications. In the business world, it can help in making educated financial predictions and projections. For example, a ...

The simplest way to find the average (mean) of a set of numbers is to use the AVERAGE function. This calculation gives you the arithmetic mean, which sums up all the numbers and divides the result by ...

The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

While Excel is useful for many applications, it is an indispensable tool for those managing statistics. Two common terms used in statistics are Standard Deviation and ...

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...

Have you ever stared at a sprawling Excel spreadsheet, wondering how to make sense of the chaos? For many, Excel formulas feel like a secret language, powerful yet elusive. But here’s the truth: ...

Not everyone is an Excel spreadsheet expert and you may not always know how to write the formulas you need for a given data set. If you're having trouble figuring out the right formula for your data ...