Standardisation
What Standardisation means in Mathematics A-Level, as defined for AQA, Pearson Edexcel.
Definitions of Standardisation
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Reference: AQA
Transforming any Normal variable using Z = (X - μ)/σ to the standard Normal, essential when μ or σ are unknown.
The process of converting a Normal random variable X ~ N(μ, σ²) into a standard Normal variable Z ~ N(0, 1) using the formula Z = (X - μ) / σ.
Topics that use Standardisation
- N: Statistical distributions (AQA A-Level)
- Probability (Pearson Edexcel A-Level)
Related terms
- Binomial distribution
- Normal distribution
- Random variable
- Conditional probability
- continuity correction
- Discrete distributions
- Event
- Independent events
Using Standardisation in the exam
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