Mathematics GCSE
Mutually Exclusive
What Mutually Exclusive means in Mathematics GCSE, as defined for Eduqas, Pearson Edexcel.
Definitions of Mutually Exclusive
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Events that cannot happen at the same time. If A happens, B cannot happen.
Events that cannot happen at the same time. P(A ∩ B) = 0.
Topics that use Mutually Exclusive
- Probability (Eduqas GCSE)
- Probability (Pearson Edexcel GCSE)
Related terms
- Independent Events
- Sample Space
- Relative Frequency
- Conditional Probability
- Dependent Events
- Expected Frequency
- Intersection
- Intersection (A ∩ B)
Using Mutually Exclusive in the exam
Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.
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