Posts tagged ‘Anscombe Quartet’

2 janvier 2015

Have you heard about the Francis Anscombe’s Quartet ?! #Marketing-Thema

Do not get fooled by this statistical illusion ! 4 series, 4 regressions,same statistics !

(Same mean, same variance, same correlation, but data and graphical display are completely different)

The Anscombe Quartet (4) is a famous principle explaining that even if you see the summary statistics of series it doesn’t tell how data is looking, visualisation is always ncessary to a complete understanding of what’s happening.

 

References :

F.J. Anscombe, « Graphs in Statistical Analysis », American Statistician, 27 (February 1973), 17-21

http://fr.wikipedia.org/wiki/Quartet_d%27Anscombe

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