The arithmetic mean is the result of adding all numbers in a series, counting the number of numbers in the series, and then dividing the sum by the count.

Learn about the mean, median, mode and range with BBC Bitesize Key Stage 3 Maths.

Investors usually consider the geometric mean a more accurate measure of portfolio performance than the arithmetic mean because it accounts for compounding. Learn more.

Explore the importance of robust statistics like median and MAD in data analysis, ensuring accurate insights despite outliers ...

The distinction is between the mean, which the Republicans emphasize, while the Democrats prefer the median. Before turning to the economy, let me review a little fourth-grade arithmetic.

Learn about the mean, median, mode and range with BBC Bitesize Key Stage 3 Maths.