The number of stories in each of a sample of the world’s 20 tallest buildings follows. Construct a grouped frequency distribution and a cumulative frequency distribution with 9 classes. 55 80 70 79 54 56 78 77 64 60 71 55 60 75 55 69 65 75 70 72 Find the class limits. The first lower class limit is 54. 54 -

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The number of stories in each of a sample of the world’s 20 tallest buildings follows. Construct a grouped frequency distribution and a cumulative frequency distribution with 9 classes.

55
80
70
79
54
56
78
77
64
60
71
55
60
75
55
69
65
75
70
72

Find the class limits. The first lower class limit is 54.

54 -

 

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