Question: 2. (4 points) Only two factories produce a particular electronic device. 20 percent of the output from factory I and 5 percent from factory II


2. (4 points) Only two factories produce a particular electronic device. 20 percent of the output from factory I and 5 percent from factory II are defective. Factory I produces twice as many products as factory II each week. (a) What is the probability that a device, randomly chosen from a week's production, is satisfactory? (b) If the chosen device is defective, what is the probability that it came from factory
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