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Variance Array Function
Math Statistics Class

Public Function VarianceArray( _
    ByRef vValues As Variant _
    ) As Variant

Variance of numeric values.
More efficient version of the Variance Function but with restrictions on the arguments it accepts.

Examples: 
    VarianceArray(Array(12, 34, 56)) = 484
    VarianceArray(SampleData) = 563.55900621118
See also: 
    Variance Function
    VariancePopulationArray Function
    StandardDeviationArray Function
    AverageDeviationArray Function
    DeviationsSquaredArray Function
    VAR Function (Microsoft Excel)
    VARA Function (Microsoft Excel)
vValues: Numeric-type array or Variant array containing only numeric elements. This function is NOT affected by the current setting of the StatVarType Property. It assumes that vValues is an array that contains only numeric elements.
Return value: Function returns the variance of the numeric values. Function returns Null if there are fewer than two numeric values in the array, or if there is some type of error, such as if the argument is a Variant array which contains an Object reference or String.
v1.5 Note: VarianceArray and VariancePopulationArray replace the VarianceVariantVector function, which has been removed from ArrayArithmetic Class. This function is slightly different in that it examines all of the elements in the array from its lower bound through its upper bound.

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