Loading…
Loading…
GCSE Chemistry · key term
A result that lies noticeably away from the pattern formed by the other data.
Used by OCR
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Evaluating data qualityAn outlier lies noticeably away from the pattern of the other results. Its unusual position is a reason to investigate it, not an automatic reason to delete it.
A result that differs noticeably from the pattern formed by the other results.
Do not discard an outlier just because it is inconvenient. Retain it unless there is evidence of a measurement, procedural or recording error; repeating the measurement can help the decision.
Discuss the extent of support: consider the strength and consistency of the pattern, spread of repeats, outliers, range tested and amount of data.
Do not discard an outlier simply because it is inconvenient. Give an evidence-based reason, such as a known measurement or recording error, or retain it as data.
Create a free account to read GCSE Chemistry revision notes for your exam board and track your progress.