Problems 22-25.Use the data in Table 2 to answer the questions.Use graph paper when doing charts or graphs by hand. See FAQ chapter 5.

Table 2. The heights of 30 trees in a wood lot.
Heights (feet)
38	37	8	22	18
30	4	15	40	10
33	39	11	17	3
38	7	3	23	35
40	13	13	7	4
30	3	19	14	39

22. Using five classes, construct a frequency distribution table, listing the frequencies, midpoints, relative frequencies (round to 3 places), and the cumulative frequencies.

23. Construct a relative frequency histogram.

24. Construct an ordered stem-and-leaf chart for the data set (see section 2.2).

25. Construct a frequency polygon for the data set.