A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.2 years, and standard devi

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answerhappygod
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A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.2 years, and standard devi

Post by answerhappygod »

A manufacturer knows that their items have a normally
distributed lifespan, with a mean of 12.2 years, and standard
deviation of 1 years.

If you randomly purchase one item, what is the probability it will
last longer than 12 years?

Round answer to three decimal places
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