Mathematics, 20.03.2022 05:20 jeffyisdrunk

4. In a lot, there are 2000 electric bulbs. Among these bulbs, 1800 are good and 500 and bought from company B. out of the good bulbs, 300 are bought from company B. a bulb is randomly selected and found that it is bought frora company B what is the probability that it is a good bulb? 13 marks)

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4. In a lot, there are 2000 electric bulbs. Among these bulbs, 1800 are good and 500 and bought from...

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