The data sets show the ages of all participants in two yoga classes.

(a) Make a back-to-back stem-and-leaf plot to display the data.
(b) What are the lowest and highest ages of participants in the 3:00 p.m. class? In the 8:00 p.m. class?
(c) How many participants are in each class?
(d) Compare the distribution of ages in each class. What observation(s) can you make?

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3:00 P.M. Class 40 60 73 77 51 68 68 35 68 53 64 75 76 69 59 55 38 57 68 84 75 62 73 75 85 77 8:00 P.M. Class 19 18 20 29 39 43 71 56 44 44 18 19 19 18 18 20 25 29 25 22 31 24 24 23 19 19 18 28 20 31