April 2017
Intermediate to advanced
335 pages
10h 10m
German
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Teil I:
Deskriptive Statistik
Bei statistischen Erhebungen fallen im Regelfall Tausende von Einzeldaten an. Die Methoden der deskriptiven Statistik (Synonyma sind: beschreibende Statistik, explorative Statistik) zielen darauf ab, diese unüberschaubare Datenmenge durch möglichst wenige – jedoch noch aussagekräftige – Zahlen zu charakterisieren. Im Extremfall wird lediglich eine einzige Zahl zur Charakterisierung der gesamten Datenmenge benutzt. So soll ein Lageparameter die Größenordnung aller Einzeldaten charakterisieren, ein Preisindex die Veränderung aller Preise eines umfangreichen Warenkorbs, ein Korrelationskoeffizient die Abhängigkeit zwischen den Ausprägungen zweier verschiedener Merkmale usw.
Selbstverständlich kann eine derart weitgehende ...
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