Psychology GCSE
Symmetry and the bell shape
What Symmetry and the bell shape means in Psychology GCSE, as defined for AQA.
Definition of Symmetry and the bell shape
Check what you remember
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Reference: AQA
A normal distribution is symmetrical about its central value, producing a bell-shaped curve with equal frequencies either side of the mean.
Topics that use Symmetry and the bell shape
- Data handling (AQA GCSE)
Related terms
- Arithmetic mean and significant figures
- Calculating from raw scores
- Choosing appropriate displays
- Decimal and standard form notation
- Frequency tables and tallies
- Histograms for continuous data
- Measures of central tendency
- Primary data
Using Symmetry and the bell shape in the exam
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