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Mathematics, 28.07.2019 18:30 nataliellamas56

The life of light bulbs is distributed normally. the standard deviation of the lifetime is 25 hours and the mean lifetime of a bulb is 590 hours. find the probability of a bulb lasting for at most 622 hours. round your answer to four decimal places.

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The life of light bulbs is distributed normally. the standard deviation of the lifetime is 25 hours...
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