H2 Maths Notes (JC 1-2): 6.3) Normal Distribution

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07 Oct 2025, 00:00 Z

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Marcus Pang·Managing Director (Maths)

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Q: What does H2 Maths Notes (JC 1-2): 6.3) Normal Distribution cover?
A: Standardisation, symmetry, inverse normal, and linear transformations for normal models in the 2026 H2 Maths syllabus.

Before you revise
Bookmark the GC normal menu (normalcdf, invNorm) and keep a sketch pad handy-exam scripts still expect hand-drawn bell curves with shaded regions. The 2026 syllabus excludes normal approximation to binomial distribution, so treat binomial and normal questions as separate models.

Status: SEAB H2 Mathematics (9758, first exam 2026) syllabus last checked 2026-01-13 (PDF last modified 2024-10-16). Topic 6.3 is assessed in Paper 2 Section B (Probability & Statistics, 60 marks); normal approximation to binomial distribution is excluded.

Core Concepts

• A normal model is written $X \sim \mathcal{N}(\mu, \sigma^2)$ with mean $\mu$ and variance $\sigma^2$