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Mathematics, 07.05.2020 06:06 Alexandragurule18

The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1400 hours and a standard deviation of 75 hours. What is the probability that a randomly chosen light bulb will last less than 1380 hours, to the nearest thousandth?

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The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1400 h...
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