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Combined Science
Key terms
Class interval

GCSE Combined Science · key term

Class interval

Definition

A numerical range used to group measurements, with boundaries that determine which values belong in it.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science B · J260

Specification M2 · Biology, Chemistry, Physics, Combined Science

If there are many different readings, group them into class intervals rather than making a separate row for every measurement. Make the intervals non-overlapping so that a reading cannot belong to two groups.
Revise: Summarising and Representing Data

OCR Combined Science B past papers

Exam tips

1
Use separated bars for categories and touching bars for continuous class intervals.

Related key terms

Arithmetic mean
Bar chart
Correlation
Frequency
Frequency table

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Class interval — OCR GCSE Combined Science B Definition

Scatter diagram