Life expectancy
The life expectancy of batteries has a normal distribution with a mean of 350 minutes and a standard deviation of 10 minutes. What is the range in minutes 68% of the batteries will last?
What is the range in minutes? How long will approximately 99.7% of batteries last?
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What is the range in minutes? How long will approximately 99.7% of batteries last?
Your answer:
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statisticsUnits of physical quantitiesGrade of the word problem
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