Consider a system that consists of 4 devices. The probabilities of failure for each of the devices are, respectively: 10%, 25%, 20%, and 30%.
(a) If these components were in series, what is the probability that the system operates?
(b) If these components were in parallel, what is the probability that the system operates?
(c) Is there a difference in the probability that these systems operate? If so, explain the source of this difference