
AbstractSufficient conditions under which the relevation of two probability distributions is (i) NBU, (ii) IFRA, (iii) IFR are derived. The result for case (iii) corrects an error in a previous article by Baxter.
new better than used, IFRA, Reliability and life testing, Reliability, availability, maintenance, inspection in operations research, relevation, NBU, increasing failure rate average, closure properties, increasing failure rate
new better than used, IFRA, Reliability and life testing, Reliability, availability, maintenance, inspection in operations research, relevation, NBU, increasing failure rate average, closure properties, increasing failure rate
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