this is the 3rd time I post the question I need relative cumulative frequency ,
ID: 3441017 • Letter: T
Question
this is the 3rd time I post the question I need relative cumulative frequency, and explain the K
Construct a grouped frequency table for the following set of exam scores (Put them in 6 equal length classes). Also, relative cumulative frequency.
60
90
76
81
59
40
48
61
57
78
86
65
63
54
68
93
71
78
79
67
75
87
76
74
86
57
62
95
80
70
K= Minimum = Maximum = Range= Length of classes=
I need a detailed solution, what is the K ??? how to get it? the relative cumulative frequency how get it?
no copy paste from another question
60
90
76
81
59
40
48
61
57
78
86
65
63
54
68
93
71
78
79
67
75
87
76
74
86
57
62
95
80
70
Explanation / Answer
K stands for degrees of freedom
k = n-1 = 29
Minimum = 40
Maximum = 95
Range = 55
Total numbers = 30
Length of classes = 10.
Relative frequency is the ratio of frequency to total numbers as shown below in the table.
Frequency distribution table:
Set of exam scores Frequency cum Frequ Relative cum frequ 40 - 50 2 2 0.066667 50 - 60 4 6 0.2 60 - 70 7 13 0.433333 70 - 80 9 22 0.733333 80 - 90 5 27 0.9 90 - 100 3 30 1Related Questions
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