Suppose you go to a certain lot to buy a Christmas tree. The heights of the trees are normally distributed with a mean of 7.5 ft and a standard deviation of 8in. You’re in a hurry, so you ask any...

Suppose you go to a certain lot to buy a Christmas tree. The heights of the trees are normally
distributed with a mean of 7.5 ft and a standard deviation of 8in. You’re in a hurry, so you ask
any employee to grab a random one for you. What is the probability that you get a tree that is
either less than 7ft tall or greater than 8ft tall? Include a sketch of the normal curve and the
area you are trying to find.