Problem 4: A large firm uses three different types (A, B, and C) of raw materials...

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Problem 4: A large firm uses three different types (A, B, and C) ofraw materials to manufacture its product. Previous records showthat 25% of the manufactured products are produced using materialA, 50% using material B, and 25% using material C. If it is knownthat 5% of the product made with material A are defective, 2% madewith material B are defective, and 5% made with C aredefective.
What is the probability that a product selected at random from thisfirm will be defective?
If a product selected at random from this firm is found to bedefective, what is the probability that it was made from materialA.

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Lets suppose that there are total 10000 products are producedusing the three materialsTherefore we haveNumber of products produced by material A 025 10000 2500Number of    See Answer
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