Mathematics, 07.07.2021 02:50 nnaomii
Lightbulbs. A company produces lightbulbs. We know that the lifetimes (in hours) of lightbulbs follow a bell-shaped (symmetric and unimodal) distribution with a mean of 7,161 hours and a standard deviation of 564 hours. Use the Empirical Rule (68-95-99.7 rule) to answer the following question: The shortest lived 2.5% of the lightbulbs burn out before how many hours
Answers: 1
of the lights burnt.
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Lightbulbs. A company produces lightbulbs. We know that the lifetimes (in hours) of lightbulbs follo...
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