Kiata bisa melakukan 4 langkah in “fitting distributions” yaitu:
1) Pemilihan Model/fungsi : Melakukan hipothesis distribusi;
2) Estimasi parameter-parameter;
3) Evaluasi “quality of fit”;
4) Test Statistik “Goodness of fit”.
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Fitting distributions consists in finding a mathematical function which represents in a good way a statistical
variable. A statistician often is facing with this problem: he has some observations of a quantitative character
x1, x2,… xn and he wishes to test if those observations, being a sample of an unknown population, belong
from a population with a pdf (probability density function) f(x,q), where q is a vector of parameters to
estimate with available data.