Durchschnittsberechnung

Lernen

Den arithmetischen Mittelwert durch Summieren und Teilen durch die Anzahl finden.

The arithmetic mean (average) is found by adding all values and dividing by the number of values. It represents the 'typical' value in a dataset. When reading charts, you may need to extract all values first, then calculate. The average is sensitive to outliers—one very high or low value can shift it significantly.

average = (sum of all values) / (number of values)

• Values: 10, 20, 30, 40 → Average = 100/4 = 25
• Bar chart with heights 50, 60, 80, 90, 70 → Average = 350/5 = 70
• Monthly sales: Jan=100, Feb=120, Mar=110 → Average = 330/3 = 110

So erkennen Sie es

• Questions asking for 'average', 'mean', or 'typical value'
• Need to combine multiple data points into one summary
• Comparing overall performance across categories

Häufige Fehler

• Dividing by wrong count (missing or extra values)
• Adding incorrectly before dividing
• Confusing average with median or mode

Übungshinweise

Dateninterpretation