Open AccessAn Estimation of Survival and Hazard Rate Functions of Exponential Rayleigh Distribution
Author(s) -
Lamyaa Khalid Hussein,
Iden Hasan Hussein,
Huda Abdulla Rasheed
Publication year - 2021
Publication title -
mağallaẗ ibn al-haytam li-l-ʻulūm al-ṣirfaẗ wa-al-taṭbīqiyyaẗ/ibn al-haitham journal for pure and applied sciences
Language(s) - English
Resource type - Journals
eISSN - 2521-3407
pISSN - 1609-4042
DOI - 10.30526/34.4.2706
Subject(s) - rayleigh distribution , estimation , christian ministry , exponential distribution , statistics , hazard , hazard ratio , maximum likelihood , distribution (mathematics) , exponential function , medicine , mathematics , probability density function , engineering , biology , political science , mathematical analysis , law , ecology , confidence interval , systems engineering
In this paper, we used the maximum likelihood estimation method to find the estimation values ​​for survival and hazard rate functions of the Exponential Rayleigh distribution based on a sample of the real data for lung cancer and stomach cancer obtained from the Iraqi Ministry of Health and Environment, Department of Medical City, Tumor Teaching Hospital, depending on patients' diagnosis records and number of days the patient remains in the hospital until his death.