Mathematics, 15.07.2020 06:01 michael1498
laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation of 75 hours. find the probability that a randomly selected light bulb will last between 825 and 900 hours.
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Mathematics, 21.06.2019 23:00
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laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hour...
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