Samenvatting Statistiek in de praktijk - hoofdstuk 9: analyse van kruistabellen

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Samenvatting Statistiek in de praktijk - hoofdstuk 9: analyse van kruistabellen

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Samenvatting van hoofdstuk 9 van het boek 'Statistiek in de praktijk: theorieboek'

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HOOFDSTUK 9: ANALYSE VAN KRUISTABELLEN
9.1 GEGEVENSANALYSE VOOR KRUISTABELLEN

9.1.1 DE KRUISTABEL
 Fouten gebruik kwalitatieve gegevens  verkeerd begrip van de opbouw van deze tabellen
 Beide variabelen kwalitatief
Kolomvariabele A Kolomvariabele B
Rijvariabele 1 Cel Cel
Rijvariabele 2 Proportie cel = getal cel / totale Cel
steekproefgrootte

Gezamenlijke verdeling

9.1.2 DE MARGINALE VERDELINGEN
 Onderzoek van de verdeling van één variabele in een kruistabel
 Procenten > proporties
Kolomvariabele A Kolomvariabele B
Rijvariabele 1 Cel Cel Marginale frequentie
Rijvariabele 2 Cel Cel Marginale frequentie
Marginale frequentie Marginale frequentie
Frequentie OF proportie

9.1.3 BESCHRIJVING VAN VERBANDEN IN KRUISTABELLEN
 Verbanden tussen kwalitatieve variabelen worden beschreven door berekening van de bijbehorende
percentages van de opgegeven aantallen.

Vb. Cel A1/totaal A
Kolomvariabele A Kolomvariabele B
Rijvariabele 1 Cel A1 (frequentie) Cel B1 (frequentie)
Rijvariabele 2 Cel A2 (frequentie) Cel B2 (frequentie)
Totaal A (frequentie) Totaal B (frequentie)

9.1.4 VOORWAARDELIJKE VERDELINGEN
 Wanneer we de ene variabele als voorwaarde nemen en daarna de verdeling van de andere variabele
berekenen = voorwaardelijke verdeling
 Staafgrafieken kunnen helpen het verband tussen twee kwalitatieve variabelen te zien
 Kruistabel  bevat een grote hoeveelheid informatie in compacte vorm.
o Om die informatie duidelijk te maken moeten we bijna altijd percentages berekenen.
 Je moet besluiten welke percentages je nodig hebt
 Kolommen: woorden > cijfers

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Connected book

D.S. Moore, G.P. MacCabe Statistiek in de praktijk Theorieboek

Publisher: maart 2006 ISBN: 9789039523605 Edition: 5

Document information

Study: Onderwijskunde
Summarized whole book?: No
Which chapters are summarized?: H9
Uploaded on: March 22, 2017
File latest updated on: May 29, 2017
Number of pages: 6
Written in: 2016/2017
Type: Summary

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