Consider a system consisting of four components, as pictured in the diagram shown below. Components 1 and 2 form a series subsystem, as do Components 3 and 4. The two subsystems are connected in parallel. Suppose thatP(1 works) =.7,P(2 works) =.7,P(3 works) =.7, andP(4 works) =.7and that the four components work independently of one another.