Consider three identical bags A, B& C. Bag A contains 2 gold coins, bag B contains 2 silver coins and bag C contains 1 silver and 1 gold. What is the probability of selecting bag A out of the 3 bags? And also the probability of selecting a gold coin from bag A?
2. When a machine is set correctly, it produced 25% defectives otherwise it produces 60% defectives. The chance that the machine is set correctly is 50% .The machine was set and before commencement of production, one piece was inspected and found to be defective
What is the probability that the machine was set up correctly?

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