IFR (Increasing Failure Rate) for Repairable Systems.
CITY COLL NEW YORK DEPT OF MATHEMATICS
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Document considers k-out-of-n system with independent repairable components. It assumes that the repair and failure distributions are exponential with parameters micron sub 1, ..., micron sub n and lambda sub 1,..., lambda sub n respectively. In this paper the author shows that if lambda sub i-micron sub i delta for all i then the life distribution of the system is Increasing Failure Rate.
- Statistics and Probability