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

Learn the difference between the standard error of the mean and the standard deviation and how each is used in statistics and finance.

Calculating the mean is one of many methods of finding an average. To calculate the mean, you add up all the numbers in the set, then divide the total by the number of numbers you added.

Learn about and revise how to find the mean, median and mode averages from data with GCSE Bitesize AQA Maths.