Mathematics, 13.04.2021 22:00 hananbarakat
The life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean lifetime of a bulb is 530 hours. Find the probability of a bulb lasting for at most 564 hours. Round your answer to four decimal places.
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The life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean li...
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