|   | Name | Description | 
|---|
   | PopulationCovariance(IEnumerableDouble, IEnumerableDouble) | 
            Evaluates the population covariance from the full population provided as two enumerable sequences, in a single pass without memoization.
            On a dataset of size N will use an N normalizer and would thus be biased if applied to a subset.
            Returns NaN if data is empty or if any entry is NaN.
             | 
   | PopulationCovariance(IEnumerableSingle, IEnumerableSingle) | 
            Evaluates the population covariance from the full population provided as two enumerable sequences, in a single pass without memoization.
            On a dataset of size N will use an N normalizer and would thus be biased if applied to a subset.
            Returns NaN if data is empty or if any entry is NaN.
             |