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20% -- I would shut down this factory immediately and fix the problem because you are wasting a lot of money producing these radios.

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Q: Out of every 40 radios produced at a factory 8 are defective. What is the probabililty that a radio made ar this factory will be defective?
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A department store receives a shipment of 23 new portable radios There are 5 defective radios in the shipment If 4 radios are selected for display What is the probability that 2 of them are defective?

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