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Mathematics, 14.02.2020 03:44 suevazpue

A system is comprised of 3 components, each of which is either "working", "iffy", or "failed". The system will work if any two components are working or if none of the components are failed. Let W be the event that the system is working. Let A be the event that at least one component is iffy. a). Define carefully a sample space, S, for this experiment. How many elements does it have? b). In terms of your sample space, give the events W, A, and W ∩ A. fa

I already know that there are 27 elements, but don't understand how did they do part b) for events W?

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