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Mathematics, 01.07.2021 19:10 misscheoneyo

The life of light bulbs is distributed normally. The standard deviation of the lifetime is 15 hours and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at most 528 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 15 hours...

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