A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8 years, and standard deviati
Posted: Mon Jul 11, 2022 11:39 am
A manufacturer knows that their items have a normallydistributed lifespan, with a mean of 8 years, and standarddeviation of 2.3 years. If you randomly purchase one item, what isthe probability it will last longer than 11 years?