100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Samenvatting Statistiek H4: De centrummaten $4.27
Add to cart

Summary

Samenvatting Statistiek H4: De centrummaten

 1 view  0 purchase
  • Course
  • Institution

Samenvatting hoofdstuk 4 statistiek (de centrummaten)

Preview 1 out of 3  pages

  • December 29, 2024
  • 3
  • 2024/2025
  • Summary
avatar-seller
DE CENTRUMMATEN
1 HOE BEREKEN JE DE MODUS?
MODUS = waarde met hoogste absolute frequentie of waarde die het vaakst
voorkomt (modus lees je nooit af in de absolute frequentie kolom!)
- Vb. dataset: [4, 6, 8, 8, 10, 12, 14] (frequentie = 8, absolute frequentie = 2)
- Bij elk meetniveau te gebruiken

EEN MEERDERHEID = modus groter dan 50%

2 MODI = twee hoogste frequenties
- Bimodaal = 2 modi
Vb. dataset: [3, 5, 7, 7, 8, 10, 10, 12] (frequenties = 7 en 10, absolute frequentie
= 2)

- Multimodaal = meer dan 2 modi
Vb. dataset: [1, 3, 5, 5, 7, 7, 9, 9] (frequenties = 5, 7 en 9, absolute frequentie =
2)

- Weinig informatie uit de verdeling van uitslagen: meerdere hoogste
frequenties maken de interpretatie van de verdeling lastiger.


2 HOE BEREKEN JE DE MEDIAAN?
MEDIAAN = middelste waarde bij rangschikking van laag naar hoog.
- Meetniveau: vanaf ordinaal

ONEVEN OBSERVATIES: exact de middelste
EVEN OBSERVATIES: het midden tussen de 2 middelste scores (= het gemiddelde van 2
middelste waardes)

Mediaan = percentiel 50

Weinig informatie uit de verdeling van uitslagen: geeft alleen de middelste waarde
van een verdeling en biedt weinig informatie over spreiding, extremen of de vorm van de
verdeling.


3 HOE BEREKEN JE HET REKENKUNDIG GEMIDDELDE?
REKENKUNDIG GEMIDDELDE = som van alle scores gedeeld door het aantal scores.
- Meetniveau: vanaf interval


1
n
x 1+ x2 +…+ xn
x= ∑
n i=1
x i=
n
- X1, X2,...Xn = individuele waarnemingen
- n = totaal aantal waarnemingen

- Voorstelling van het gemiddelde:
 X: steekproef
 µ: populatie

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller leonieluyckx68. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $4.27. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

48756 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$4.27
  • (0)
Add to cart
Added