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Teresa M.
Mathe

Wie berechnet man das harmonische Mittel?

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Juraj S.
Juraj S. Contact
Das harmonische Mittel ist ein Mittelwert einer Menge von Zahlen. Fährt man eine Stunde mit 50 km/h und dann eine Stunde mit 100 km/h, so legt man insgesamt 150 km in 2 Stunden zurück; die Durchschnittsgeschwindigkeit ist 75 km/h, also das arithmetische Mittel von 50 und 100. Bezieht man sich hingegen nicht auf die benötigte Zeit, sondern auf die durchfahrene Strecke, so wird die Durchschnittsgeschwindigkeit durch das harmonische Mittel beschrieben: Fährt man 100 km mit 50 km/h und dann 100 km mit 100 km/h, so legt man 200 km in 3 Stunden zurück, die Durchschnittsgeschwindigkeit ist 66,67 km/h, also das harmonische Mittel von 50 und 100.
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