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 ...

A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to create the mean, a trimmed mean will leave ...

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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amy is an ACA and the CEO and founder of ...

Calculating returns from your stock portfolio can be a tricky matter, especially if some of your holdings pay dividends, or you make frequent deposits and withdrawals from your account. With Excel and ...