# Failure Rate

(redirected from Hazard rate)
Also found in: Medical.

## failure rate

[′fāl·yər ‚rāt]
(engineering)
The probability of failure per unit of time of items in operation; sometimes estimated as a ratio of the number of failures to the accumulated operating time for the items.

## Failure Rate

the index of dependability of a device that is not subject to repair. Most often it is used to define the dependability of the subassemblies of electronic and automatic systems. In numerical terms the failure rate is equal to the failure probability of the device during a time period beginning at a certain moment provided that no failure has occurred before.

## Failure Rate

an index of the reliability of repairable tools and machines. The failure rate is defined as the average number of failures of the repairable device per unit of time and varies with time.

References in periodicals archive ?
the hazard rate of each subsidiary), we consider both the survival duration and divestment event (i.
The reverse Hazard rate function was determined as the relation among the probability density function and it's confirming distribution function.
H1: The hazard rate (likelihood) that a carrier receiving a warning flag for HOS compliance at the start of the CSA program will exit the warning status will decline as time elapses from the start of the CSA program.
It is also possible to graphically depict the hazard rate of a sponsorship ending over time.
Survival and hazard rate patterns by region and histology type suggest that there may be a number of underlying reasons for variation.
The term R(a) denotes the baseline hazard rate at age a.
A Goodness-of-Fit using a Chi-square statistic can be calculated by comparing the likelihood of a distribution with a null model, which allows for a different hazard rate for each interval.
A considerable work has been done to develop tests to compare the cumulative incidence of different types of failure or the hazard rates in the presence of competing risks data.
A number of methods have been proposed for investigating the questions we asked, that is, whether the observed hazard rate changed; if so, how many times, and when.
For a dummy variable, the hazard ratio represents the increase in the overall hazard rate facing the firm when the corresponding dummy is equal to one.
As in our study, several other ungulate studies reported the hazard rate key function with various expansions to be the top models (Focardi et al.

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