1 The number of components processed in one hour on a new machine was recorded on 40 occasions: 72 81 78 68 74 66 87 79 74 84 91 80 71 62 77 86 87 72 80 77 94 64 82 78 67 88 76 83 75 71 83 77 67 76 82 78 66 79 74 64 (a) Divide the set of values into seven equal width classes from 60 to 94. (b) Calculate (i) the frequency distribution, (ii) the mean, (iii) the standard deviation.
1 The number of components processed in one hour on a new machine was recorded on 40 occasions: 72 81 78 68 74 66 87 79 74 84 91 80 71 62 77 86 87 72 80 77 94 64 82 78 67 88 76 83 75 71 83 77 67 76 82 78 66 79 74 64 (a) Divide the set of values into seven equal width classes from 60 to 94. (b) Calculate (i) the frequency distribution, (ii) the mean, (iii) the standard deviation.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Im not able to copy the word version of these questions hence i send these pictures can you please help me out with these questions from the pictures sent thank you.
Transcribed Image Text:1 The number of components processed in one hour on a new machine was ( 58
recorded on 40 occasions:
74
72 81
78
68 74
66 87
80
79
84
71
91
62
77
86
87
72
80
77
76
83
75
71
83
67
94
64
82
78
77
67
76
82
78
88
66
79
74
64
(a) Divide the set of values into seven equal width classes from 60 to 94.
(b) Calculate (i) the frequency distribution, (ii) the mean, (iii) the
standard deviation.
Transcribed Image Text:2 The lengths, in millimetres, of 40 bearings were determined with the
following results:
16-6
15-3
16-3
14-2
16-7
17-3
18-2
15.6
14.9
17.2
18.7
16-4
19.0
15-8
15-1
19.3
18-4
17-0 18-9
18.3
15-9
13.6
18-3
17-2
18-0
15-8
16-8
17-7
16-8
17-9
17.3
16-6
15-3
16.4
17.3
16.9
14-7
16-2
17-4
15.6
(a) Group the data into six equal width classes between 13-5 and
19-4 mm.
(b) Obtain the frequency distribution.
(c) Calculate (i) the mean, (ii) the standard deviation.
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