The Table below shows the data collected on a urban highway in Accra during a speed study. Develop the frequency histogram and the frequency distribution of the data and determine: i. The arithmetic mean speed i. The standard deviation i. The median speed iv. The mode or modal speed v. The 85th-percentile speed *use the intervals of 34 - 35.9, 36 – 37.9, 38 – 39.9 and so on.. Speed Speed (km/h) Speed (km/h) Car Speed | (km/h) Car Car Car No. No. (km/h) No. No. 35.1 23 46.1 45 47.8 67 56.0 44.0 24 54.2 46 47.1 68 49.1 3 45.8 44.3 25 26 27 52.3 57.3 46.8 47 34.8 52.4 49.1 49.2 56.4 69 48 70 36.3 49 71 48.5 50 51 52 6. 54.0 28 57.8 37.1 72 45.4 29 30 31 73 74 42.1 36.8 65.0 48.6 50.1 51.8 55.8 43.3 49.5 52.2 52.0 53 54 75 498 10 50.8 32 55.3 48.4 76 77 63.4 55 56 57 S8 11 38.3 33 390 42.8 60.1 12 13 34 35 36 44.6 53.7 49.5 78 488 45.2 41.1 79 52.1 48.7 40.8 48.6 14 54.5 41.2 80 55.1 50.2 54.3 15 37 51.6 59 48.0 81 61.8 16 17 38 39 40 51.7 50.3 58.0 82 83 84 566 48.2 60 61 49.0 18 19 45.4 59.8 62 41.8 62.1 55.2 41 40.3 63 48.3 RS 53.3 20 21 22 45.7 54.1 42 55.1 45.0 45.9 44.7 53.4 64 65 86 43 54.0 44 48.3 66 49.5

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The Table below shows the data collected on a urban highway in Accra during a speed study.
Develop the frequency histogram and the frequency distribution of the data and determine:
i.
The arithmetic mean speed
ii.
The standard deviation
The median speed
The mode or modal speed
iii.
iv.
The 85th-percentile speed
v.
** use the intervals of 34 - 35.9, 36– 37.9, 38– 39.9 and so on....
Speed
(km/h)
Speed
(km/h)
Car
Speed
(km/h)
Car
Car
Car
Speed
(km/h)
No.
No.
No.
No.
35.1
46.1
56.0
23
24
45
47.8
67
44.0
54.2
46
47.1
68
49.1
45.8
25
52.3
47
34.8
69
49.2
44.3
26
57.3
48
52.4
70
56.4
36.3
27
46.8
49
49.1
37.1
71
48.5
57.8
36.8
45.4
48.6
6
54.0
28
50
72
42.1
29
51
65.0
73
8.
50.1
30
55.8
52
49.5
74
52.0
51.8
50.8
9
31
43.3
53
52.2
75
49.8
10
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
488
13
45.2
35
40,8
57
48.6
79
52.1
14
41.1
36
54.5
58
41.2
80
48.7
15
35.1
37
51.6
59
48.0
81
61.8
16
50.2
38
51.7
60
58.0
82
56.6
17
54.3
39
50.3
61
49.0
83
48.2
18
45.4
40
59.8
62
63
41.8
84
62.1
53.3
19
55.2
41
40.3
48.3
85
20
45.7
42
55.1
64
45.9
86
53.4
21
54.1
43
45.0
65
44.7
22
54.0
44
48.3
66
49.5
1234tr
Transcribed Image Text:The Table below shows the data collected on a urban highway in Accra during a speed study. Develop the frequency histogram and the frequency distribution of the data and determine: i. The arithmetic mean speed ii. The standard deviation The median speed The mode or modal speed iii. iv. The 85th-percentile speed v. ** use the intervals of 34 - 35.9, 36– 37.9, 38– 39.9 and so on.... Speed (km/h) Speed (km/h) Car Speed (km/h) Car Car Car Speed (km/h) No. No. No. No. 35.1 46.1 56.0 23 24 45 47.8 67 44.0 54.2 46 47.1 68 49.1 45.8 25 52.3 47 34.8 69 49.2 44.3 26 57.3 48 52.4 70 56.4 36.3 27 46.8 49 49.1 37.1 71 48.5 57.8 36.8 45.4 48.6 6 54.0 28 50 72 42.1 29 51 65.0 73 8. 50.1 30 55.8 52 49.5 74 52.0 51.8 50.8 9 31 43.3 53 52.2 75 49.8 10 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 78 488 13 45.2 35 40,8 57 48.6 79 52.1 14 41.1 36 54.5 58 41.2 80 48.7 15 35.1 37 51.6 59 48.0 81 61.8 16 50.2 38 51.7 60 58.0 82 56.6 17 54.3 39 50.3 61 49.0 83 48.2 18 45.4 40 59.8 62 63 41.8 84 62.1 53.3 19 55.2 41 40.3 48.3 85 20 45.7 42 55.1 64 45.9 86 53.4 21 54.1 43 45.0 65 44.7 22 54.0 44 48.3 66 49.5 1234tr
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