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# If a light bulb has a mean of 1400 hours and a standard deviation of 100 hr what is the probability that the light bulb lasts between 1290 hours and 1530 hours?

Updated: 10/18/2022

Wiki User

6y ago

It is 0.2325

Wiki User

6y ago

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Q: If a light bulb has a mean of 1400 hours and a standard deviation of 100 hr what is the probability that the light bulb lasts between 1290 hours and 1530 hours?
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