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GCSE Statistics · key term
A number, usually written as , between −1 and +1 that measures the strength and direction of the linear correlation between two variables.
Used by Edexcel
Specification 2e.07, 2e.08 · Paper 1, Paper 2
Revise: Interpreting Pearson's PMCCYou interpret a given PMCC; you do not need to calculate it for this course.
A measure of the strength and direction of the linear relationship between two numerical variables, using their original values.
Name both variables when interpreting a PMCC, and describe what tends to happen to one as the other increases.
No formal numerical boundaries for 'strong' or 'weak' correlation are expected, and you will not be required to calculate PMCC.
You are not required to calculate PMCC for this specification.
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