Mathematics, 15.12.2021 22:30 DrGeneric
The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1300 hours and a standard deviation of 85 hours. What percentage light bulbs last between 1160 hours and 1240 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 1300 h...
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