independence
What independence means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of independence
Check what you remember
Read the wording for your board, then hide it and explain independence in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
The condition that the outcome of one trial does not change the probability distribution of another trial.
Topics that use independence
- Statistical distributions (Pearson Edexcel A-Level)
Related terms
- Binomial distribution
- continuity correction
- Cumulative probability
- discrete random variable
- discrete uniform distribution
- Limitations and model criticism
- Mean (μ)
- Model selection and assumptions
Using independence in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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