public double CalcDisperssion()
{
var sumList = AXi.Select((value, index) => Math.Pow(Math.Abs(value - ExceptedValue), 2) * Ni[index]).Sum();
Disperssion = sumList / (n - 1);
return(Disperssion);
}
public double CalcExceptedValue()
{
var sumList = AXi.Zip(Ni, (x, y) => x * y).Sum();
ExceptedValue = sumList / n;
return(ExceptedValue);
}
public List <double> CalcAXi()
{
AXi.Clear();
for (int i = 0; i < Xi.Count - 1; i++)
{
AXi.Add((Xi[i] + Xi[i + 1]) / 2);
}
return(AXi);
}
public List <double> CalcFrequencyF()
{
var a = ExceptedValue;
sigma = Math.Sqrt(Disperssion);
for (int i = 0; i < AXi.Count(); i++)
{
var power = Math.Pow(Math.E, (-1 * Math.Pow(AXi[i] - a, 2)) / (2 * Math.Pow(sigma, 2)));
var firstMultiplier = 1 / (sigma * Math.Sqrt(2 * Math.PI));
FrequencyF.Add(firstMultiplier * power);
}
return(FrequencyF);
}