Question: The snow pack on the summit of Wolf Creek Pass, Colorado on March 1 has been measured for many years. It is normally distributed with mean 78.1 inches and standard deviation 10.4 inches. A year is selected at random.

a) Find the probability that the snowpack is less than 60 inches.

b) Find the probability that the snowpack is more than 85 inches.

c) Find the probability that the snowpack is between 60 inches and 85 inches.