Mathematics, 17.01.2020 05:31 itsmaddierae11

the amount of time a certain brand of light bulb lasts is normally distribued with a
mean of 1600 hours and a standard deviation of 55 hours. using the empirical rule,
what percentage of light bulbs last between 1490 hours and 1710 hours?

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the amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1600 hours and a standard deviation of 55 hours. using the empirical rule, what percentage of light bulbs last between 1490 hours and 1710 hours?

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Another question on Mathematics

the amount of time a certain brand of light bulb lasts is normally distribued with a
mean of 1600 hours and a standard deviation of 55 hours. using the empirical rule,
what percentage of light bulbs last between 1490 hours and 1710 hours?