Mean Formula: Check what is mean, its definition and its formula here. Also, get solved examples of calculating mean for grouped and ungrouped data using direct mean formula and assumed mean method.

A trimmed mean is a way to find the average by first removing a small portion of the highest and lowest values, then calculating the mean from the remaining data.

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.

Cost of goods sold (COGS) is defined as the direct costs attributable to the production of the goods sold by a company.