شماره ركورد كنفرانس
4109
عنوان مقاله
Randomly weighted average on Dirichlet random vectors
پديدآورندگان
Homei H Department of Statistics, Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran , Albad E Department of Statistics, Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran , Fallahi M Department of Statistics, Faculty of Mathematical Sciences, University of Tabriz, Tabriz, Iran
تعداد صفحه
9
كليدواژه
Dirichlet distribution , Moments method , Randomly weighted average
سال انتشار
1396
عنوان كنفرانس
يازدهمين سمينار ملي احتمال و فرآيندهاي تصادفي
زبان مدرك
انگليسي
چكيده فارسي
The paper is motivated by considering lifetime in the environment. The distribution of the product of Gamma and Beta independent random variables have been studied by several authors such as Nadarajah and Kotz. (2005). On the product and ratio of gamma and beta random variables. Allgemeines Statistisches Archiv 89, 435--449]. Following [SM. Abourizk, DW. Halpin, JR. Wilson (1994). Fitting beta distributions based on sample data. Journal of Construction Engineering and Management, 288-305] we are taking the sum of beta random variables under environmental impact and then a suitable approximation is presented for the case that the distribution can not be evaluated. Finally the obtain result lead us to lifetime distribution in independent $r$-position.
كشور
ايران
لينک به اين مدرک