During ballet class, the pulse rate was recorded for 19 students before/after  the exercise warm-up. Here are the pulse rates:

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During ballet class, the pulse rate was recorded for 19 students before/after  the exercise warm-up. Here are the pulse rates:

Pulse before Exercise Pulse after Exercise
67 87
67 88
67 89
68 89
71 91
72 93
72 93
75 95
77 96
77 97
79 98
81 98
85 101
87 105
87 105
91 119
97 125
103 125
121 147

Create a stemplot for both data sets like seperatelty. then explain or Justify the reasoning for split or nonsplit stems.

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