Statistično smo ovrednotili 5100 eksperimentalnih vrednosti upogibnih trdnosti testnih vzorcev iz redne proizvodnje korundnih keramičnih izdelkov. Primerjali smo teoretično izračunano Weibullovo porazdelitev z dvema drugima pogosto uporabljenima dvoparametričnima porazdelitvama, normalno in log-normalno, da bi ugotovili, katera se najbolj sklada z meritvami. Za izračun ustreznih prostih parametrov smo uporabili metodo največje verjetnosti (maximum-likelihood method). Potem smo za primerjavo rezultatov uporabili Q–Q-diagrame. Potrdili smo domnevo, da se z eksperimentalnimi vrednostmi trdnosti najbolj ujema Weibullova porazdelitev.We have performed a statistical evaluation of 5100 experimental values of the bend strength of test pieces from a serial production of alumina products. The Weibull distribution was compared with two other commonly used 2-parametric distributions, i.e., normal and log-normal, in order to reveal which of them best matches the experiments. The maximum-likelihood method was used to evaluate the corresponding parameters, and then a Q–Q plot was used for all the statistics. We confirmed that the Weibull distribution describes the experimental strengths most accurately
