What Is the System Availability for Something That Has a Mean

question 83

Multiple Choice

What is the system availability for something that has a mean time between failures of 168 hours and needs an average of 48 hours to repair when it does fail?

• A) 0.98
• B) 0.93
• C) 0.88
• D) 0.83
• E) 0.78

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Definitions:

Density Function

A function that describes the likelihood of a random variable to take on a given value, often used in the context of continuous probability distributions.

F(x)

Generally refers to a function of x, which might denote a variety of mathematical relationships depending on the context.

Exponential Distribution

Exponential distribution is a continuous probability distribution used to model the time between events in a Poisson process, characterizing occurrences that happen independently and at a constant average rate.

Probability Distribution

It is a mathematical tool that quantifies the probability of different outcomes in any given experiment.