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.
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 42RE: How many distinct rearrangements of the letters of the word DEADWOOD are there if the arrangement...
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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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