The heights of trees in large grove are normally distributed with mean of 85 feet and a standard deviation of 10 feet. Explain your answers and provide a drawing of the robability (area under the curve) for each situation.
A. What is the probability that a tree selected at random is more 100 feet tall?
B. What is the percentile rank of a tree that is 80 ft. tall?
C. What is the minimum height of a tree that is in the top 10% of heights?