Weighted Mean Calculator
Calculate the weighted mean from values and weights.
Result
81
Weighted mean: 81
Result in all units
Step-by-step solution
What Is the Weighted Mean?
The weighted mean is the average calculated when each value carries a different weight. It is used when each data point does not have equal influence, such as grades, prices, and scores.
How is it calculated?
How Is It Calculated?
Weighted mean = Σ(value × weight) ÷ Σweight
- Enter each value and its weight.
- Divide the sum of the value-weight products by the total weight.
Frequently Asked Questions
How does it differ from a normal mean?
In a normal mean all values have equal weight, whereas in a weighted mean each value contributes according to its own weight.