11. Consider the following data.

14 21 23 21 16 19 22 25 16 16 24 24 25 19 16 19 18 19 21 12 16 17 18 23 25 20 23 16 20 19 24 26 15 22 24 20 22 24 22 20

a. Develop a frequency distribution using classes of 12–14, 15–17, 18–20, 21–23, and 24–26.

b. Develop a relative frequency distribution and a percent frequency distribution using the classes in part (a).