Question

the data set shows the ages of all participants in two yoga classes. complete parts (a) through (d) below.

3:00 p.m. class
40 60 74 77 51 67
68 35 53 64 76 69
59 73 55 75 68 76
74 38 77

8:00 p.m. class
19 18 19 24 19 29
19 20 35 22 55 25
24 19 18 43 23 71
18 31 20 25 44 31

(a) make a back to back stem-and-leaf plot to display the data.

3:00 p.m. class
8:00 p.m. class

key: 1|0 = 10
(use ascending order.)

Explanation:

Sort data for 3:00 P.M. Class

$$
LATEXBLOCK0
$$

Sort data for 8:00 P.M. Class

$$
LATEXBLOCK1
$$

Format leaves for back-to-back plot

$$
LATEXBLOCK2
$$

Answer:

(a) Make a back to back stem-and-leaf plot to display the data.

$$\begin{array}{r|c|l} \text{3:00 P.M. Class} & \text{Stem} & \text{8:00 P.M. Class} \\ \hline & 1 & \text{88899999} \\ & 2 & \text{002344559} \\ \text{85} & 3 & \text{115} \\ \text{0} & 4 & \text{34} \\ \text{9531} & 5 & \text{5} \\ \text{988740} & 6 & \\ \text{77665443} & 7 & \text{1} \\ \end{array}$$

Key: \(1|0 = 10\)

(Use ascending order.)