Consider the system of components connected as in the accompanying picture.Components 1 and 2 are connected in parallel, so that subsystem works if and only ifeither 1 or 2 works; since 3 and 4 are...

Consider the system of components connected as in the accompanying picture.
Components 1 and 2 are connected in parallel, so that subsystem works if and only if
either 1 or 2 works; since 3 and 4 are connected in series, that subsystem works if and
only if both 3 and 4 work. Assume components work independently of one another
and P(component works) = 0.86.