Concept explainers
Derek is disappointed in his high-speed Internet service. Although the Internet is seldom down, it kicks into slow mode quite often, which Derek considers to be a failure. He has tried three service providers with varying degrees of success. The number of failures in a typical eight-hour day and the average time to regain high-speed service are shown below. Derek must choose one of the following options. Calculate the system availability for each option. Which service would you recommend?
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