OLASILIKLI PERT ANALİZİNDE KULLANILAN BETA DAĞILIMININ BEKLENEN DEĞERİNİN HESABINDA ORTAYA ÇIKABİLECEK HATALARIN PARAMETRİK OLARAK İNCELENMESİ

Özet

The modal value of the beta distribution is a functıon of the upper and Iower limits of the range. That is, for a given range, the modal value ol the distribution is determinable. However, in probabilis-tic pert models, along vvith the upper and lovver limits, a modal value is also estimated. The difference betvveen the estimated and the calculatcd modal val-ues causes an error in expected value vvhich is ob-tained using the lovver limit, upper limit and the modal value.