A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.9 years,
Fantastic news! We've Found the answer you've been seeking!
Question:
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.9 years, and standard deviation of 3.2 years. If you randomly purchase one item, what is the probability it will last longer than 22 years?
Posted Date: