Population Variance with Weights
Measure population spread with nonnegative weights for observed values.
Your numbers
Variance for whole population
This na population variance; e no apply bias correction for sample weights.
Compare scenarios
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Formula
μ=Σwx/Σw; σ²=Σw(x−μ)²/Σw
Measure population spread with nonnegative weights for observed values.
Example wey show the calculation
- Values wey you want combine
- 1, 2, 3
- Weights wey no negative
- 1, 2, 1
- Variance for whole population
- 0.5
- How values spread: standard deviation
- 0.707106781187
- Mean after applying weights
- 2
Where e fit work and limits
This na population variance; e no apply bias correction for sample weights.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: e5c6ce6d038b · Example don get check: