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eco college aantekingen colleges 1 tot 4 en 6
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Eco aantekeningen van de colleges 1 tot en met 4 en 6
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College 1Covariatie bieriekien jeie ooor
Hiet gieief ieien inoicatie ovier oie stierktie ien oie richtng van oie samienhang.
Hiet naoieiel ier van is oie rangie van oie covariantie is afankielijek van oie mieietieienhieio van oie
variabielien. Die oplossing hiiervan is oieiel oie covariantie ooor oie stanoaarooieviantie. (ieiearson
corrielatie)
(iearson corrielatie bieschrijef linieairie rielatie ttussien twieie kwanttatievie/ntumieriiekie variabielie ien ligt
ttussien -1 ien 1.
Vierbanoien van oie piearson corrielatie
,Biegin altjeo miet ieien scatierplot!!!
Oppassien voor
Niiet-linieairie vierbanoien= bietiekieno gieien piearson
Uitbijetiers= kan ierg grotie invloieo hiebbien op jeie groiep
Hietrogienie stubgroiepienien = mieieroierie cltusiers. Zijen oie cltusiers systiematsch anoiers
Riestricton of rangie= jeie biekijekt hiet vierbano van ieien sttukjeie van oie rangie. Kan ieien vierkieieroie
concltusiie vieroorzakien.
Op oie ptuntjeies horien 1.53, 0.65, 0.99.
,
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