| Article ID: | iaor1991166 |
| Country: | India |
| Volume: | 27 |
| Issue: | 3 |
| Start Page Number: | 189 |
| End Page Number: | 197 |
| Publication Date: | Sep 1990 |
| Journal: | OPSEARCH |
| Authors: | Iyer Srinivas |
A formula is given for the system failure rate analogous to the pivotal decomposition formula for a system of independent components. This is then generalized to the dependent case. Some characterizations of series systems are given. Finally, the observed hazard rate is used to construct a random variable whose expected value at time