Inaam Rikan Hassan - University of information technology and communications
Jane Jaleel Stephan - University of information technology and communications
Alaa Hamza Omran - University of Information Technology and Communication

In this paper we work on estimating parameters of compound three parameters (Burr-XII) which is one of time to failure model distribution with two shapes parameters (α,r) and one scale parameter (λ), the three parameters (α,r,λ) are estimated by methods of moments and method of maximum likelihood and also method of Least square

fuzzy hazard, Burr-XII, failure model, maximum likelihood method, moment method.