Multiply each value by its corresponding weight
Add all the weighted values
Add all the weights
Divide the sum of the weighted values by the sum of the weights
Weighted mean = Σ(value × weight) / Σ(weight)
Multiply each value by its corresponding weight
Add all the weighted values
Add all the weights
Divide the sum of the weighted values by the sum of the weights
Weighted mean = Σ(value × weight) / Σ(weight)