4. (9pts) Cherry trees in a certain large orchard have heights that are normally distributed with mean u = 114 inches and standard deviation o = 13 inches. (For each part - Shade and label appropriately; Give 4 decimal places; Give units, where appropriate). a. What proportion of trees are more than 132 inches tall? b. About 20% of the trees have a height below what value? c. Find the probability that a randomly selected tree is between 92 and 105 inches tall