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 ...

In this KS2 Maths article you'll learn how to calculate a type of average called the mean. We also have KS2 videos, a quiz and lots of examples.

Formula of Mean: Know to How to Calculate Median for Grouped, Ungrouped data along with solved examples, questions with solution.

The geometric mean is the average of a set of products, the calculation of which is commonly used to determine the performance results of an investment or portfolio.

Learn about and revise how to find the mean, median and mode averages from data with this BBC Bitesize GCSE Maths Edexcel study guide.