Question: Stories in the World’s Tallest Building. The number of stories in each of the world’s 30 tallest buildings is listed below. Construct a grouped frequency distribution and a cumulative frequency distribution with 7 classes.

88 88 110 88 80 69 102 78 70 55

79 85 80 100 60 90 77 55 75 55

54 60 75 64 105 56 71 70 65 72