A machine to detect improper welds in a fabricating shop, Ask an Expert

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A machine to detect improper welds in a fabricating shop detects 80 percent of all improper welds, but it also incorrectly indicates an improper weld on 5 percent of all satisfactory welds. Past experience indicates that 10 percent of all welds are improper. What is the probability that a weld which the machine indicates to be defective is in fact satisfactory?

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Category:- Statistics and Probability
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