1. The following table gives the Test Scores earned by 80 students on an exam

Classes	Frequency
5 - 19	4
20 - 34	12
35 - 49	15
50 - 64	16
65 - 79	22
80 - 94	11

Find the midpoints and class boundaries.

1. Create the Relative Frequency distribution of Problem #1.
2. Construct the cumulative frequency distribution of Problem #1
3. The ages of the 45 members of a track and field team are listed below. Construct a frequency distribution with 6 classes: 21 18 42 35 32 21 44 25 38 48 14 19 23 22 28 32 34 27 31 17 16 41 37 22 24 33 32 21 26 30 22 27 32 30 20 18 17 21 15 26 36 31 40 16 25.
4. Construct the stem-and-leaf graph of the set in problem #4.