Descriptive Statistics (Mean, Median, SD)
GRE · Flashcards · Recall
GRE · FLASHCARDS
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QUESTION
What is the outlier rule using
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,
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, and
IQR
\text{IQR}
IQR
(Tukey fences)?
QUESTION
What is the mean after adding a constant
c
c
c
to every data value?
QUESTION
What is the interquartile range (IQR) in terms of quartiles
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and
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?
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ANSWER
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−
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Q_3-Q_1
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−
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. The IQR captures the middle 50% spread by differencing the third and first quartiles, excluding extremes.
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