1.56 Longleaf pine trees, The Wade Tract in Thomas County, Georgia, is an old-growth forest of longleaf pine trees (Pinus palustris) that has survived in a relatively undisturbed state since before the settlement of the area b Europeans. A study collected data on 584 of these trees." One of the variables measured was the diameter at breast height (DBH). This is the diameter of the tree at 4.5 feet, and the units are centimeters (cm). Only trees with DBH greater than 1.5 cm were sampled. Here are the diameters of a random sample of 40 of these trees: ı PINES 27 10.5 13.3 26.0 18.3 52.2 9.2 26.1 17.6 40.5 31.a 47.2 11.4 2.7 69.3 44.4 16.9 35.7 5.4 44.2 2.2 4.3 7.8 38.1 2.2 11.4 51.5 4.9 39.7 32.6 51.8 43.6 2.3 44.6 31.5 40.3 22.3 43.3 37.5 29.1 27.9 (a) Find the five-number summary for these data. (b) Make a boxplot. (c) Make a histogram. (d) Write a short summary of the major features of this distribution. Do you prefer the boxplot or the histogram for these data?
1.56 Longleaf pine trees, The Wade Tract in Thomas County, Georgia, is an old-growth forest of longleaf pine trees (Pinus palustris) that has survived in a relatively undisturbed state since before the settlement of the area b Europeans. A study collected data on 584 of these trees." One of the variables measured was the diameter at breast height (DBH). This is the diameter of the tree at 4.5 feet, and the units are centimeters (cm). Only trees with DBH greater than 1.5 cm were sampled. Here are the diameters of a random sample of 40 of these trees: ı PINES 27 10.5 13.3 26.0 18.3 52.2 9.2 26.1 17.6 40.5 31.a 47.2 11.4 2.7 69.3 44.4 16.9 35.7 5.4 44.2 2.2 4.3 7.8 38.1 2.2 11.4 51.5 4.9 39.7 32.6 51.8 43.6 2.3 44.6 31.5 40.3 22.3 43.3 37.5 29.1 27.9 (a) Find the five-number summary for these data. (b) Make a boxplot. (c) Make a histogram. (d) Write a short summary of the major features of this distribution. Do you prefer the boxplot or the histogram for these data?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1.56 Longleaf pine trees. The Wade Tract in Thomas
County, Georgia, is an old-growth forest of longleaf pine
trees (Pinus palustris) that has survived in a relatively
undisturbed state since before the settlement of the area by
Europeans. A study collected data on 584 of these trees.
One of the variables measured was the diameter at breast
height (DBH). This is the diameter of the tree at 4.5 feet,
and the units are centimeters (cm). Only trees with DBH
greater than 1.5 cm were sampled. Here are the diameters
of a random sample of 40 of these trees: PINES
27
10.5
13.3
26.0
18.3
52.2
9.2
26.1
17.6 40.5 31.8
47.2
11.4 2.7
69.3 44.4
16.9
35.7
5.4 44.2
2.2
4.3
7.8 38.1
2.2
11.4 51.5
4.9
39.7 32.6 51.8
43.6
2.3
44.6 31.5
40.3
22.3 43.3
37.5 29.1
27.9
(a) Find the five-number summary for these data.
(b) Make a boxplot.
(c) Make a histogram.
(d) Write a short summary of the major features of this
distribution. Do you prefer the boxplot or the histogram
for these data?
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