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1.2.7 - Normal and skewed distribution

Syllabus
2026
Objective
1.2.7
Level
AS

- Normal and skewed distribution

1.2.7 Normal and skewed distribution.

Use - normal and skewed distribution to connect the rule to the data and decision in the question.

This matters because - normal and skewed distribution determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - normal and skewed distribution to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Normal and skewed distribution is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.

ConceptA-Level Edexcel Psychology AS