I have a question here that I cannot figure out (actually a few). I am not to good at this, and need some one to help me out. If you can help on this one maybe I can figure out the rest.

The weight of potato chip bags filled by a machine at a packing plant is normally distributed with a mean of 15.0 ounces and a standard deviation of 0.2 ounces. What is the probability that a randomly chosen bag will weigh more than 15.6 ounces?