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 ...

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Mathematical models are a way to attempt to predict the probable outcome of a complex situation. From climate, stock market and physics models, you can use mathematical formulas to determine a range ...

In your school life, you have learned about average and the method to calculate it. The formula to calculate the average is very simple. You just have to add all the values in the given data and ...

A straight ranking result is easy using one of Microsoft Excel’s ranking functions. Calculating a conditional rank is even easier if you let an Excel PivotTable do all the work. Image: ...

To calculate the Consumer Price Index between two years in Excel, take a sum of all the amounts spent on the basket of products over those two years. Then use the following formula to find the CPI ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Getty Images / juststock The forward ...

Successful investing requires the ability to distinguish long-term trends from the short-term noise that moves stock prices on a minute-to-minute basis. One way to tune out the random oscillations and ...

How to use VBA’s InputBox function to select a range on the fly in Excel Your email has been sent Often, you’ll want Excel users to specify a range that the app then uses in an automated way.

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 ...