A Mechanical sysem has four components. Component 1 wor nponent 2 works with a probability of 0.78 ; component 3 worl nponent 4 works with a probability of 0.85 . Suppose that the ope ependent of each other. (CLO2/PLO2) Suppose that this mechanical system works only when all f What is the probability that the system works? Suppose that the system works only if at least one compor probability that the system works? Suppose that the system works only if at ieast three compon probability that the system works