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Why should an unusual observation not be automatically treated as an error?
A
Grouping hides individual values within each class interval.
B
It may be a genuine but rare result.
C
A scatter-graph point may be unusual because it lies far from the general trend.
D
Whiskers may show the extremes or the most extreme non-outliers.
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2.5.8 Data presentation and interpretation Flashcards
21 flashcards on CCEA A Level Maths 2.5.8 Data presentation and interpretation: the key formulae, methods and definitions you need to recall for AS 1, AS 2, A2 1 and A2 2.