public static double StatZScore(dynamic score, dynamic values)
{
double mean = StatisticMean.Mean(values);
double standDev = StatsStandardDev.StandardDev(values);
double zScore = Division.Quotient(Subtraction.Subtract(score, mean), standDev);
return(zScore);
}
public static double Variance(dynamic values)
{
double mean = StatisticMean.Mean(values);
double difference = 0;
double variance = 0;
foreach (int a in values)
{
difference = Subtraction.Subtract((int)mean, a);
difference = Math.Pow(difference, 2);
variance = Addition.Sum(variance, (int)difference);
}
int ValueCount = Helpers.Arrays.Length(values);
variance = Division.Quotient(variance, ValueCount);
return(variance);
}