| QueryableExtensionMethodsVariance Method | 
| Name | Description | |
|---|---|---|
| VarianceTSource, TColumnType(IQueryableTSource, ExpressionFuncTSource, TColumnType) | 
            returns the variance over the column specified by selector.
              | |
| VarianceTSource, TColumnType(IQueryableTSource, ExpressionFuncTSource, TColumnType, Boolean) | 
            returns the variance over the column specified by selector.
              |