Lecture notes
hoofdstuk 2 statistiek
- Module
- Institution
1ste hoofdstuk statistiek
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Hoofdstuk 2: kijken naar data; relatiesSpreidingsdiagrammen (scatterplots)
Spreidingsdiagrammen (scatterplots)
Verklarende en verklaarde variabelen
Verklaarde variabele meet een uitkomst van een studie.
Verklarende variabele verklaar of veroorzaakt veranderingen in de verklaarde variabele .
Samenhang tussen 2 variabelen: kennis van de waarde van de ene variabele laat toe om de waarde
van de andere variabele beter te voorspellen.
Aard van het verband (lineair, exponentieel, …)
o Richting
o Vorm
Mate waarin de ene variabele variabiliteit in de andere kan verklaren (= sterkte van het
verband)
Grootte van het effect
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