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 ...

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 ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

The mean is the most commonly used measure of average close. To calculate the mean, add the values together and divide the total by the number of values. If you place a set of numbers in order, the ...

Frequency tables can be used to help present sets of data. There are 4 children aged 10, which gives a total age of 40 in that category. There are 6 children aged 11, which gives a total age of 66 in ...

Chris Gallant, CFA, is a senior manager of interest rate risk for ATB Financial with 10 years of experience in the financial markets. Vikki Velasquez is a researcher and writer who has managed, ...

Averages are used all the time in finance, usually to justify performance (above average'). However, as an investor, youshould realise there are several ways to calculate an average.The three most ...