Formulae for GCSE Statistics (Edexcel)

GCSE Statistics involves a number of formulae and students need to be able to apply these formulae in the exam. Some formulae are provided in the exam but many are not and, therefore, must be memorised.

Here is a summary of the formulae required for Unit 1 (Collection of Data) and Unit 2 (Processing, Representing and Analysing Data).

Look out for the symbols that indicate whether the formulae are provided in the exam or must be remembered!

It is also provided as a pdf document on our Free Resources page so you can easily download for your own reference.