Psychology A-Level
fractions and ratios
What fractions and ratios means in Psychology A-Level, as defined for OCR.
Definition of fractions and ratios
Check what you remember
Read the wording for your board, then hide it and explain fractions and ratios in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Fractions, ratios and percentages express the same relationship, with ratios comparing part to part rather than part to whole unless specified.
Topics that use fractions and ratios
- D.0 – arithmetic and numerical computation (OCR A-Level)
Related terms
- anomalous scores
- decimal conversion
- estimation as a check on calculation
- percentage change
- percentage of a total
- pie chart angles
- reporting a mean with spread
- standard form notation
Using fractions and ratios in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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