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Uitgewerkte oefeningen van statistiek ()

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Dit document bevat de uitgewerkte A-, B- en C-oefeningen (dus met tussenstappen) van deel 1 (univariate beschrijvende statistiek), deel 2 (bivariate beschrijvende statistiek) en deel 3 (inductieve statistiek). Daarnaast staan ook de proefexamens opgelost in het bestand. Het document is geschreven i...

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  • August 24, 2017
  • September 3, 2017
  • 97
  • 2016/2017
  • Answers
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Ine Journée Schakelprogramma Communicatiewetenschappen Prof: John Lievens



OEFENINGEN: STATISTIEK (K000441)
DEEL A: VOORBEREIDENDE OEFENINGEN

UNIVARIATE BESCHRIJVE NDE STATISTIEK


BASISCONCEPTEN
OEFENING 1 p. 8

a) De leerlingen van de Antwerpse scholen
b) Een leerling van een Antwerpse school
c) De wapens: mes, pistool, pepperspray etc.
d) Nominaal

OEFENING 2 p. 8

a) De walvissen in de Atlantische Oceaan
b) Een walvis in de Atlantische Oceaan
c) Continent (=nominaal)
Soort walvis (=geen variabele!)
Ouderdom walvis (=ordinaal)
Aantal kwetsuren walvis (=ordinaal)


FREQUENTIEVERDELINGEN
OEFENING 1 p. 9

a)

xi fi Cum fi pi Cum pi
Nooit 276 276 0,95 0,95
Zelden 8 284 0,03 0,98
Af en toe 4 288 0,01 0,99
Dikwijls 2 290 0,007 0,997
Zeer vaak 1 291 0,003 1
b) 2 studenten nemen dikwijls harddrugs. Dit komt overeen met 0,7%.
c) 98% van de studenten neemt zelden of nooit harddrugs.
d) 0,007
e) 0,007 + 0,003 = 0,01


MATEN VAN POSITIE
OEFENING 1 p. 10

a) Modus: 0
Mediaan: 2
Gemiddelde:




Statistiek 1

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