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Summary

Hulpsamenvatting Statistiek in 20 stappen, ISBN: 9789001575373 statistiek

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Ik heb hiermee een 8,9 gehaald. Een hulpsamenvatting bij het vak statistiek. Een recensie zou ik enorm waarderen!

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Summarized whole book?
No
Which chapters are summarized?
Hoofdstuk 1 t/m 5 en 7 t/m 12
Uploaded on
April 16, 2021
Number of pages
10
Written in
2020/2021
Type
Summary

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Content preview

Statistiek in 20 stappen
Z-waardes:
80% 1,28
85% 1,44
90% 1,65
95% 1,96
99% 2,58

Excel formules:
Rekenkundig gem. X-gem GEMIDDELDE
Mediaan MEDIAAN
Modus MODUS (selecteer van welke kolom je de
modus wilt weten)
Range (variantiebreedte) MAX(A2:A21)-MIN(A2:A21)
Standaarddeviatie s STDEV.S
Verwachtingswaarde SOMPRODUCT
NORM.VERD.N
n! FACULTEIT
Combinatie COMBINATIES
Variatie PERMUTATIES

Frequentiedichtheid:
1. Bereken de klassebreedtes van elke klasse.
2. De frequentie van de klassen delen door de bijbehorende klassebreedtes en dat zijn
je frequentiedichtheden.

Let op: bij discrete variabelen moet je bij het berekenen van de klassebreedtes wel de
ondergrens meerekenen, maar niet de bovengrens. Dat betekent dat het klassenmidden bij
een klasse van 25-<30 niet 27,5 is maar 27, omdat alleen 25, 26, 27, 28, 29 meedoen.




Continue variabelen= oneindig veel denkbare uitkomsten mogelijk.
Discrete variabelen= beperkt aantal mogelijke uitkomsten. (Je kan geen 0,5 mens hebben).



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