In a certain assembly plant, three machines, B1, B2, and B3, make 30%, 45%, and 25%, respectively, of the products. It is known from past experience that 2%, 3%, and 2% of the products made by each machine, respectively, re defective. Now, suppose that a finished product is randomly selected. What is the probability that it is defective? O 0.0245 O 0.096 O 0.0577 O 0.0311 O something else O 0.0135

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