Mathematics, 23.03.2020 03:20, itsdeevv

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 85 hours. What percentage light
bulbs last between 1310 hours and 1470 hours, to the nearest tenth?

Answers: 1

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