Example 4.2 Determining Speed Characteristics from a Set of Speed Data Table 4.2 shows the data collected on a rural highway in Virginia during a speed study. Develop the frequency histogram and the frequency distribution of the data and determine: 1. The arithmetic mean speed 2. The standard deviation 3. The median speed 4. The pace 5. The mode or modal speed 6. The 85th-percentile speed Table 4,2 Speed Data Obtained on a Rural Highway Speed (mi/h) Speed (mi/h) Speed (mi/h) Speed (mi/h) Car No. Car No. Car No. Car No. 47.8 67 56.0 45 46 1 35.1 23 46.1 44.0 24 54.2 47.1 68 49.1 34.8 52.4 49.2 56.4 69 47 48 52.3 3. 4. 25 26 45.8 44.3 57.3 70 46.8 49 49.1 71 48.5 5. 6. 36.3 27 54.0 28 57.8 50 37.1 72 45.4 7. 42.1 29 36.8 51 65.0 73 48.6 52.0 49.8 74 52 53 49.5 52.2 48.4 30 55.8 50.1 51.8 9. 31 43.3 75 10 50.8 32 55.3 54 76 63.4 11 38.3 33 39.0 55 42.8 77 60.1 34 53.7 56 49.5 78 48.8 12 44.6 52.1 48.7 61.8 57 48.6 79 35 36 40.8 54.5 13 45.2 58 41.2 80 14 41.1 15 55.1 37 51.6 59 48.0 81 82 83 56.6 48.2 60 58.0 51.7 50.3 16 50.2 38 17 54.3 39 61 49.0 84 85 62.1 53.3 53.4 62 41.8 59.8 40.3 55.1 45.0 48.3 18 19 45.4 55.2 40 41 63 48.3 45.9 86 64 65 20 45.7 42 44.7 21 54.1 43 66 49.5 22 54.0 44

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Topic Video
Question
Traffic Engineering
Dr. Jalal Taqi Shaker Al-Ubaedi
Example: (Garber page 109)
Example 4.2 Determining Speed Characteristics from a Set of Speed Data
Table 4.2 shows the data collected on a rural highway in Virginia during a speed
study. Develop the frequency histogram and the frequency distribution of the data
and determine:
1. The arithmetic mean speed
2. The standard deviation
3. The median speed
4. The pace
5. The mode or modal speed
6. The 85th-percentile speed
Table 4,2 Speed Data Obtained on a Rural Highway
Speed
(mi/h)
Speed
(mi/h)
Speed
(mi/h)
Speed
(mi/h)
Car No.
Car No.
Car No.
Car No.
67
56.0
45
46
47
47.8
46.1
54.2
1
35.1
23
49.1
47.1
34.8
2.
44.0
24
68
3.
45.8
25
52.3
69
49.2
4
44.3
26
57.3
48
52.4
70
56.4
36.3
27
46.8
49
49.1
71
48.5
54.0
28
57.8
50
37.1
72
45.4
29
36.8
51
65.0
73
48.6
7.
8.
42.1
74
52.0
52
53
49.5
52.2
50.1
30
55.8
9.
51.8
31
43.3
75
49.8
10
50.8
32
55.3
54
48.4
76
63.4
11
38.3
33
39.0
55
42.8
77
60.1
12
44.6
34
53.7
56
49.5
78
48.8
52.1
79
80
48.6
57
58
40.8
45.2
41.1
35
36
13
54.5
41.2
48.7
14
59
48.0
81
61.8
51.6
51.7
15
55.1
37
60
58.0
82
56.6
38
50.2
54.3
16
50.3
61
49.0
83
48.2
17
39
84
62.1
62
63
41.8
48.3
40
59.8
45.4
55.2
18
85
53.3
19
41
40.3
64
45.9
86
53.4
20
45.7
42
55.1
44.7
49.5
21
54.1
43
45.0
65
22
54.0
44
48.3
66
Transcribed Image Text:Traffic Engineering Dr. Jalal Taqi Shaker Al-Ubaedi Example: (Garber page 109) Example 4.2 Determining Speed Characteristics from a Set of Speed Data Table 4.2 shows the data collected on a rural highway in Virginia during a speed study. Develop the frequency histogram and the frequency distribution of the data and determine: 1. The arithmetic mean speed 2. The standard deviation 3. The median speed 4. The pace 5. The mode or modal speed 6. The 85th-percentile speed Table 4,2 Speed Data Obtained on a Rural Highway Speed (mi/h) Speed (mi/h) Speed (mi/h) Speed (mi/h) Car No. Car No. Car No. Car No. 67 56.0 45 46 47 47.8 46.1 54.2 1 35.1 23 49.1 47.1 34.8 2. 44.0 24 68 3. 45.8 25 52.3 69 49.2 4 44.3 26 57.3 48 52.4 70 56.4 36.3 27 46.8 49 49.1 71 48.5 54.0 28 57.8 50 37.1 72 45.4 29 36.8 51 65.0 73 48.6 7. 8. 42.1 74 52.0 52 53 49.5 52.2 50.1 30 55.8 9. 51.8 31 43.3 75 49.8 10 50.8 32 55.3 54 48.4 76 63.4 11 38.3 33 39.0 55 42.8 77 60.1 12 44.6 34 53.7 56 49.5 78 48.8 52.1 79 80 48.6 57 58 40.8 45.2 41.1 35 36 13 54.5 41.2 48.7 14 59 48.0 81 61.8 51.6 51.7 15 55.1 37 60 58.0 82 56.6 38 50.2 54.3 16 50.3 61 49.0 83 48.2 17 39 84 62.1 62 63 41.8 48.3 40 59.8 45.4 55.2 18 85 53.3 19 41 40.3 64 45.9 86 53.4 20 45.7 42 55.1 44.7 49.5 21 54.1 43 45.0 65 22 54.0 44 48.3 66
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Centre, Spread, and Shape of a Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman