A lot of numbers get thrown around when we're trying to understand the impact COVID-19 is having. Here, we explain what the most common ones mean and what they tell us about the state of the pandemic.

To find the mean of an ungrouped data, Step 1: Calculate the sum of all the values (x1 + x2 + x3 + … + xn) Step 2: Divide by the number of values provided (n) ...

Mode, median and mean are three types of average. Find out how to calculate them and the range of numbers in this Second Level Primary Maths guide.

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

The term describes how much the numbers if a set of data vary from the mean. The syntax to calculate the Standard Deviation is as follows: =STDEV(sampling range) ...