data representation and interpretation Flashcards by Nana Oppong

Q

what is meant by central tendency?

A

average

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Q

what are the 3 central tendency’s

A

mode
median
mean

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Q

what are the two measures of location?

A

quartiles
percentiles

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Q

It’s an outlier if…

A

> Q3 + (k×IQR)
< Q1 - (k×IQR)

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Q

What is data cleaning?

A

Removing anomalies (outliers)

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Q

What are the 3 measures of spread?

A

Range
Interquartile range
Interpercentile range

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Q

how do you calculate interquartile range?

A

Q3 - Q1

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