Weighted Mean Calculator
Calculate a weighted arithmetic mean from values and their non-negative weights.
Calculate a weighted arithmetic mean from values and their non-negative weights.
Move between weighted summaries, t statistics, chi-square goodness-of-fit and one-way ANOVA calculations.
Calculate a weighted arithmetic mean from values and their non-negative weights.
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Open calculatorCalculate a one-way ANOVA F statistic from summary statistics for three independent groups.
Open calculatorCalculate a weighted arithmetic mean from values and their non-negative weights.
Enter compatible statistical values. The calculator validates the inputs and applies Weighted mean = Σ(wᵢxᵢ) / Σwᵢ.
Variables: xᵢ = Values; wᵢ = Weights.
Example: Values 10, 20, 30 with weights 1, 2, 3 give a weighted mean of approximately 23.3333.
It is an educational tool for descriptive and inferential statistical calculations from supplied values or summary statistics.
No. Where a test statistic is calculated, the tool does not automatically replace study design, assumption checks, p-value interpretation, confidence intervals or subject-matter judgment.
These sources are used to verify terminology, formulas, and information related to this calculator.