Mathematics, 02.12.2021 02:40 kidcashdw
The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1600 hours and a standard deviation of 55 hours. What percentage light bulbs last between 1460 hours and 1640 hours, to the nearest tenth?
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The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1600 h...
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