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A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.9 years, and standard deviation of 1.8 years. If you

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A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.9 years, and standard deviation of 1.8 years. If you randomly purchase one item, what is the probability it will last longer than 4 years? Round answer to three decimal places > Next

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