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What happens to the mean when an unusually large outlier is added?
A
For symmetrical data without significant outliers, use the mean and standard deviation.
B
The mean is pulled upwards.
C
The range is maximum−minimum\boxed{\text{maximum}-\text{minimum}}maximum−minimum.
D
It depends on positions, not the sizes of extreme values.
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2.2.5 Data presentation and interpretation Flashcards
22 flashcards on WJEC A Level Maths 2.2.5 Data presentation and interpretation: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.