Random variable
What Random variable means in Mathematics A-Level, as defined for AQA, Pearson Edexcel.
Definitions of Random variable
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Reference: AQA, Pearson Edexcel
A variable whose numerical value is determined by the outcome of a random process.
A variable whose value is determined by the outcome of a random experiment. Discrete random variables take specific values (e.g., number of heads), while continuous random variables can take any value in a range (e.g., height).
A numerical variable whose value is determined by the outcome of a random experiment.
Topics that use Random variable
- N: Statistical distributions (AQA A-Level)
- Probability (Pearson Edexcel A-Level)
- Statistical distributions (Pearson Edexcel A-Level)
Related terms
- Binomial distribution
- Normal distribution
- continuity correction
- Mean (μ)
- standard deviation
- Standardisation
- Variance (σ²)
- Conditional probability
Using Random variable in the exam
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