Lernkarten

Karten 7 Karten
Lernende 1 Lernende
Sprache English
Stufe Universität
Erstellt / Aktualisiert 20.09.2018 / 20.09.2018
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Fenster schliessen

Population Data

Complete set of all items that interest an investigator

-all potential buyers of a new product

- all registred voters in a city or country

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Random Sampling

- Sample of objects from a population

- each member is chosen strictly by chance

- each member is equally likely to be chosen

Fenster schliessen

Systematic Sampling

- every th item in a population N, divided by the desired sample n

the first number j is randomly chosen

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Parameter

A numerical measure that describes a specific characteristic of a whole population

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Statistic

A numeral measure that describes a specific characteristic of a sample (Stichprobe)

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Descriptive statistics

Focus on graphical and numerical procedures to summarize and process data

Fenster schliessen

Inferential Statistics

Focus on using data to make predictions, forecasts etc.