A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.1 years, and standard deviation of 1.3 years. If you randomly purchase one item, what is the probability it...

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4.1 years, and standard deviation of 1.3 years.
If you randomly purchase one item, what is the probability it will last longer than 3 years?

 A particular fruit's weights are normally distributed, with a mean of 268 grams and a standard deviation of 12 grams.
If you pick one fruit at random, what is the probability that it will weigh between 237 grams and 292 grams