Mathematics, 20.03.2020 07:43 plumagirl

The life of light bulbs is distributed normally. The standard deviation of the lifetime is 20 hours and the mean lifetime of a bulb is 580 hours. Find the probability of a bulb lasting for at most 606 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 20 hours...

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Mathematics, 21.01.2021 01:10

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