@article{Unnikrishnan Nair_Asha_Sankaran_2004, title={On the covariance of residual lives}, volume={64}, url={https://rivista-statistica.unibo.it/article/view/59}, DOI={10.6092/issn.1973-2201/59}, abstractNote={Various properties of residual life such as mean, median, percentiles, variance etc have been discussed in literature on reliability and survival analysis. However a detailed study on covariance between residual lives in a two component system does not seem to have been undertaken. The present paper discusses various properties of product moment and covariance of residual lives. Relationships the product moment has with mean residual life and failure rate are studied and some characterizations are established.}, number={3}, journal={Statistica}, author={Unnikrishnan Nair, N. and Asha, G. and Sankaran, Paduthol Godan}, year={2004}, month={Jan.}, pages={573–585} }