%0 Journal Article %T The Role of the Continuous Variables Indices in the Life -Testing Research %A Gabriela OPAIT %J Annals of Dun£¿rea de Jos University. Fascicle I : Economics and Applied Informatics %D 2012 %I Dunarea de Jos University of Galati %X The present research reflects the importance in statistics of the group indexes numbers which express the dynamic of the continuous variables. The purpose of this paper consists in reflecting increasing Mean Time in the case of the continuous working concerning the blocks for the electronic command of the liner aircrafts BAC 1-11 achieved by British Aerospace firm. %K Life-testing %K Rayleigh function %K Weibull function %K Factors Paths Method %U http://www.ann.ugal.ro/eco/Doc2012.3/Opait.pdf