Question

Which intervals are most appropriate for constructing a frequency table for the data set?

45 53 60 36 22 27 47 68 33 51 55 29 28 45 43

A. 20–35, 35–50, 50–65, 65–80

B. 20–39, 40–49, 50–59, 60–69

C. 20–34, 35–49, 50–64, 65–79

D. 20–39, 40–54, 55–65, 66–75