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Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean u = 111 inches and standard deviation o =
Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean u = 111 inches and standard deviation o = 13 inches. Use the Excel spreadsheet to answer the following. Round the answers to at least two decimal places. Part 1 of 3 (a) Find the 25" percentile of the tree heights. The 25 percentile of the tree heights is 102.232 inches. Part 2 of 3 V (b) Find the first quartile of the tree heights. The first quartile of the tree heights is 102.225 inches. Part: 2 / 3 Part 3 of 3 (c) An agricultural scientist wants to study the tallest 2% of the trees to determine whether they have a certain gene that allows them to grow taller. To do this, she needs to study all the trees above a certain height. What height is this? The agricultural scientist should study all the trees above inches. X
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