A machine that builds gas tanks operates in such a way that the capacity of each tank is a normal random variable with a mean 16.0 gallons and standard deviation of 0.1 gallons.

1.What is the probability that a randomly selected tank will hold at least 16.15 gallons? Show graph, calculation and interpretation.

2.What is the probability that a randomly selected tank will differ from the mean by more than 0.25 gallons? Show graph, calculation and interpretation.