Question: 9. Worker Error A worker-operated machine produces a defective item with probability .01 if the worker follows the machines operating instructions exactly, and with probability

9. Worker Error A worker-operated machine produces a defective item with probability .01 if the worker follows the machine’s operating instructions exactly, and with probability .03 if he does not. If the worker follows the instructions 90% of the time, what proportion of all items produced by the machine will be defective?

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