Suppose that a component in a satellite system has a useful life described by an exponential distribution with a failure rate of 10-5 hours, which is ƛ = 10-5. How many years will it have to last before it outlasts 90% of similar components?

If we want to design a system that will explore various planets in the solar system and we expect the satellite to have a useful life of 14 years. Using the information from the previous problem. How many components must we place in parallel to ensure that the satellite will have a 99.5% chance of success?