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Mathematics, 12.12.2019 21:31 mamabates181981
Amanufacturer knows that their items have a normally distributed lifespan, with a mean of 7.4 years, and standard deviation of 2.3 years. if you randomly purchase one item, what is the probability it will last longer than 4 years?
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Amanufacturer knows that their items have a normally distributed lifespan, with a mean of 7.4 years,...
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