The number of stories in each of a sample of the world’s 30 tallest buildings follows. Construct a grouped 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.
Find class boundaries, histogram, frequency polygon, the Ogive, mean, the mode, the median and midrange of the data.
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