Weighted Average
Calculates weighted mean: sum(value × weight) / sum(weights).
Weighted mean
86,67
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Formula
weighted mean = Σ(value × weight) / Σweight
Example: Grades 1 (weight 2) and 5 (weight 1): mean 2.33
Methodology
Weighted mean = Σ(value × weight) / Σ(weights).
Example
Test 80% (weight 2) and oral 90% (weight 1): (160+90)/3 = 83.3%.