Suppose that each relay in an electrical circuit has a reliability of 0.9 for a specified operating period of t hours.

Suppose that each relay in an electrical circuit has a reliability of 0.9 for a specified operating period of t hours. For independently operating components with identical life distributions, find the system reliability for each of the following.: (a) (b) Which has the higher reliability? How could you configure a system of such relays to bring RS(t) up to 0.999?