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A factory has a total of three manufacturing units, M₁, M₂ , and M₃ , which produce bulbs independent of each other. The units M₁, M₂ , and M₃ produce bulbs in the proportions of 2:2:1, respectively. It is known that 20 % of the bulbs produced in the factory are defective. It is also known that, of all the bulbs produced by M₁, 15 % are defective. Suppose that, if a randomly chosen bulb produced in the factory is fou

Correct answer

0

Step-by-step solution

Now given probability aligned & P ( Produced by M ₂ defective )= 40 100 14- x 40 20 100 = 2 5 & 14- x 40 = 1 5 & 14- x =8 & x =6 aligned So, the required probability = 6 20 =0.3

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