| Name | Description | Type | Package | Framework |
| WeightedMean | The weighted mean is defined as ar{x} = frac{ sum_{i=1}^N w_i x_i}{sum_{i=1}^N w_i} | Class | com.numericalmethod.suanshu.stats.descriptive.moment.weighted | SuanShu |
| WeightedVariance | The weighted sample variance is defined as follows. | Class | com.numericalmethod.suanshu.stats.descriptive.moment.weighted | SuanShu |