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Probability and statistics Cheat Sheet (DRAFT) by

GCSE mathematics higher

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Probab­ility basics

Probab­ility is always between 0 and 1
Zero will never happen
One will definitely happen
Probab­ility can be given as fractions, decimals or percen­tages
 

Formula

This formula only works if all the possible outcomes (things that could happen) are equally likely
  
 
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