Statistics & Probability
Weighted Mean
Mean weighted by importance.
Formula
Formula
x̄_w = Σ wi xiΣ wi
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| xᵢ | values | list of real numbers | — | input |
| wᵢ | weights | list of real numbers | — | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenvalues = 90, 80, 70, weights = 0.5, 0.3, 0.2
Result83
Example 2
Givenvalues = 100, 50, weights = 1, 3
Result62.5