Outliers (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does an outlier in data typically indicate?
What does an outlier in data typically indicate?
Unusual extreme value
Which method uses quartiles to identify outliers?
Which method uses quartiles to identify outliers?
Box plot method
How is the IQR calculated?
How is the IQR calculated?
Q3 - Q1
In a box plot, outliers are shown as?
In a box plot, outliers are shown as?
Crosses (×)
Using the 1.5×IQR rule, a value is an outlier if it is?
Using the 1.5×IQR rule, a value is an outlier if it is?
Below Q1 - 1.5×IQR
What does the standard deviation method compare?
What does the standard deviation method compare?
Distance from mean
The 3σ rule applies to which type of data?
The 3σ rule applies to which type of data?
Data distribution
Which of these is true about outliers?
Which of these is true about outliers?
Can be high or low
Why is it important to identify outliers?
Why is it important to identify outliers?
To understand data variability
Can different methods identify different outliers?
Can different methods identify different outliers?
Yes, different outliers