Arapahoe Community College holds evening classes on Colorado

Arapahoe Community College holds evening classes on Colorado state history. The director of studies, wishing to know the age distribution of students in the class obtained the following information. Ages are rounded to the nearest year 65 28 22 45 30 43 35 27 18 29 31 19 52 55 54 51 32 29 19 53 51 33 58 41 56. Make a frequency table of this data with upper class boundaries of 10, 20, and so on. From this create a histogram unsing the results of this problem. Show the class mid-points in the histogram

Solution

Reordering the data for easier counting,

18
19
19
22
27
28
29
29
30
31
32
33
35
41
43
45
51
51
52
53
54
55
56
58
65

Thus, consider the table:

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