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A 10kW power supply system is to be designed. The following alternatives are available: 1. One...

A 10kW power supply system is to be designed. The following alternatives are available:
1. One single generator of 10kW rating with a failure rate of 0.20 per 1000hr,

2. Two generators each rated for 10kW and with a failure rate of 0.25 per 1000 hr,

3. Three generators each rated for 5kW and with a failure rate of 0.20 per 1000 hr.
Which of the alternatives would you select ? Why ? Assume that the redundant units are statistically independent.

Math   Statistics-And-Probability   
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