Samenvatting Stats Data and Models

-
ISBN-10 1292022450 ISBN-13 9781292022451
126 Flashcards en notities
3 Studenten
  • Deze samenvatting

  • +380.000 andere samenvattingen

  • Een unieke studietool

  • Een oefentool voor deze samenvatting

  • Studiecoaching met filmpjes

Onthoud sneller, leer beter. Wetenschappelijk bewezen.

Dit is de samenvatting van het boek "Stats Data and Models". De auteur(s) van het boek is/zijn Richard D De Veaux. Het ISBN van dit boek is 9781292022451 of 1292022450. Deze samenvatting is geschreven door studenten die effectief studeren met de studietool van Study Smart With Chris.

PREMIUM samenvattingen zijn gecontroleerd op kwaliteit en speciaal geselecteerd om je leerdoelen nog sneller te kunnen bereiken!

Samenvatting - Stats Data and Models

  • 1 Stats starts here

  • What is statistics?

    A way of resigning, along with a collection of tools and methods, designed to help us understand the world.

  • What are statistics?

    particular calculations made from data

  • What are data?

    Data are values along with their context.

  • Where is statistics about?

    Statistics is about variation.

  • What is one of the interesting chalanges of Statistics?

     

    Here can be more than one right answer. 

  • 2.1 But what are data?

  • What do data contain?

    Who, what, when, where (and if possible) Why. Often we add How to the list as well. 

  • What do the 'data questions' tell us?

    What the context for the data values is.

  • What items do you need at least to have data?

    Who and what

  • 2.2 Data Tables

  • Why do we make data tables?

    To organize the values and make the context of the data clear.

  • 2.3 who

  • What do rows of a data table correspond with?

    Individual cases about Whom (or which- if they're not people) we record some characteristics.

  • What are respondents?

    Individuals who answer a survey.

  • What are subjects?

    People on whom we experiment.

  • What are participants?

    People on whom we experiment.

  • What are experimental units?

    Animals,  websites or other inanimate subjects on which we experiment.

     

  • What are records?

    Rows in a database

     

  • What is another word for record?

    Cases

  • What is a sample?

    Cases selected from some larger population.

  • What does 'representative' mean?

    The sample of a population is able to generalize  the larger population.

  • 2.4 What and why

  • What are variables?

    Characteristics recorded about each individual.

  • How do you really understand your variables?

    Think about what you want to know.

  • What do units tell you?

    How each value has been measured.

  • What is a categorial variable?

    A variable that names categories and answers questions about how cases fall into those categories.

  • What is a quantitative variable?

    A measured variable with units answers questions about the quantity of what is measured.

  • What should you do when it isn't clear if a variable is categorial or quantitive?

    Think about Why you are looking at it and what you want it to tell you.

Lees volledige samenvatting
Deze samenvatting. +380.000 andere samenvattingen. Een unieke studietool. Een oefentool voor deze samenvatting. Studiecoaching met filmpjes.

Voorbeelden van vragen in deze samenvatting

What is statistics?
1
What are statistics?
1
What are data?
1
Where is statistics about?
1
Pagina 1 van 32