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Mathe2_statistik

QuestionAnswer
Statistische Einheit einzelnes Objekt, z.b Auto
Grundgesamtheit die Menge aller statitischen Einheiten , z.b. Autos
Stichprobe Teilmenger der Grundgesamtheit, alle Daten müssen die Chance haben Teil davon zu sein
Merkmal z.b. Marke, Typ, Preis
Ausprägung Werte eines Merkmals z.b Combi, Cabrio
diskret endliche Viele oder abzählbar unendliche Ausprägungen
stetig Intervall als Ausprägung, Auto Länge
Nominal keine Reihenfolge, nur gleich oder ungleich unterscheidbar
Ordinal lässt sich ordnen, Abstände aber nicht vergleichbar
Intervallskaliert Zahlen, Abstände aussagekräftig, Nullpunkt willkührlich, Multiplizieren und Dividieren macht keinen Sinn z.b Datum
Verhältnisskaliert intervallskaliert und ein sinnvoller absoluter Nullpunkt besteht, z.b. Alter
Urliste Liste eines Merkmals oder einer Stichprobe
absolute Häufigkeit Anzahl wie oft auf Urliste, Doppelte Einträge mitzählen
relative Häufigkeit Anteil an der Urliste
Created by: mr_black
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