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 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 ...

Our Big Story in blportfolio dated March 3, 2024, explained how statistical measures can be used to navigate the stock market and make informed investment decisions. Following up on that, of course, ...

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 ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...

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 ...