Mathematics, 09.08.2021 20:40 Carrchris021
The life of light bulbs is distributed normally. The standard deviation of the lifetime is 30 hours and the mean lifetime of a bulb is 590 hours. Find the probability of a bulb lasting for at least 535 hours. Round your answer to four decimal places.
Answers: 2
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The life of light bulbs is distributed normally. The standard deviation of the lifetime is 30 hours...
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