3.4 Measures of Position and Outliers

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5 Terms

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<p><span><br>𝒛 −score</span><br></p>


𝒛 −score

is the number of standard deviations that a given value 𝑥 is above or below
the mean.

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<p><span><br>𝒌th percentile</span></p>


𝒌th percentile

set of data if 𝑘% of the observations are less than or equal to it

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Quartiles

divide data sets into four equal part

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interquartile range, IQR

IQR=Q3-Q1

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outliers

Extreme observations